Industrial Grade CF Card -3XX/-3XX-P1/-3XX-WP1 Series Product Manual

Transcription

1 Industrial Grade CF Card -3XX/-3XX-P/-3XX-WP Series Product Manual Corporate Headquarters Suite C, 5/F, Capital Trade Center 62 Tsun Yip Street, Kwun Tong Kowloon, Hong Kong

2 The information in this manual is believed to be accurate at the time of publication but is subject to change without notice. Cactus Technologies Limited shall not be liable for technical or editorial errors or omissions contained herein; nor for incidental or consequential damages resulting from the furnishing, performance, or use of this material. Cactus Technologies makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Cactus Technologies assume any liability arising out of the application or use of its products, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Cactus Technologies products are not designed, intended or authorized for use as components in systems intended for surgical implant into the body or in other applications intended to support or sustain life or for any application where the failure of a Cactus Technologies product can result in personal injury or death. Users of Cactus Technologies products for such unintended and unauthorized applications shall assume all risk of such use and shall indemnify and hold Cactus Technologies and its officers, employees, subsidiaries, affiliates and distributors harmless against all claims, costs, damages, expenses and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended and unauthorized use, even if such claim alleges that Cactus Technologies was negligent regarding the design or manufacture of the part. All parts of the Cactus Technologies documentation are protected by copyright law and all rights are reserved. This documentation may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form without prior consent, in writing, from Cactus Technologies, Limited Cactus Technologies Limited. All rights reserved. Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7

3 Table of Contents.Introduction to Cactus Technologies Industrial Grade CF -3XX/-3XX-P/-3XX-WP Series Products.....Supported Standards Product Features Host and Technology Independence Defect and Error Management Intelligent Power Management Power Supply Requirements Product Specifications System Environmental Specifications System Power Requirements System Performance System Reliability Physical Specifications CompactFlash Physical Specifications Capacity Specifications Interface Description CF Pin Assignments and Pin Type Signal Description Electrical Specification Absolute Maximum Ratings DC Characteristics AC Characteristics Card Configuration Attribute Memory Function Configuration Option Register (Address 2h in Attribute Memory) Card Configuration and Status Register (Address 22h in Attribute Memory) Pin Replacement Register (Address 24h in Attribute Memory) Socket and Copy Register (Address 26h in Attribute Memory) I/O Transfer Function Common Memory Transfer Function True IDE Mode I/O Transfer Function ATA Drive Register Set Definition and Protocol I/O Primary and Secondary Address Configurations Contiguous I/O Mapped Addressing Memory Mapped Addressing True IDE Mode Addressing ATA Registers Data Register (Address F[7];Offset, 8, 9) Error Register (Address F[7]; Offset, Dh Read Only) Feature Register (Address F[7]; Offset, Dh Write Only Sector Count Register (Address F2[72]; Offset 2) Sector Number (LBA 7-) Register (Address F3[73]; Offset 3) Cylinder Low (LBA 5-8) Register (Address F4[74]; Offset 4) Cylinder High (LBA 23-6) Register (Address F5[75]; Offset 5) Drive/Head (LBA 27-24) Register (Address F6[76]; Offset 6) Status and Alternate Status Registers (Address F7[77] and 3F6[376]; Offsets 7 and Eh) Device Control Register (Address 3F6[376]; Offset Eh) Card (Drive) Address Register (Address 3F7[377]; Offset Fh)...27 Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7

4 5.S.M.A.R.T Feature Set SMART Enable Operations SMART Disable Operations SMART Enable/Disable Attribute Autosave SMART Read Data Spare Block Count Attribute Erase Count Attribute Total ECC Error Attribute Correctable ECC Error Attribute UDMA CRC Error Attribute Total Number of Reads Attribute SMART Read Attribute Threshold Spare Block Count Attribute Threshold Erase Count Attribute Threshold Total ECC Errors Attribute Threshold Correctable ECC Errors Attribute Threshold UDMA CRC Errors Attribute Threshold Total Number of Reads Attribute Threshold SMART Return Status XX-P/-3XX-WP Firmware Specifications ATA Security Feature Set CTLock Command Structure CTPurge Command Structure Standard Compliance Status Reporting Time and Power Requirements CTWPROT Command Structure CIS Description...42 Appendix A.Ordering Information...52 Appendix B.CF To PC Card Adapter Information...53 Appendix C.Technical Support Services...54 Appendix D.Cactus Technologies Worldwide Sales Offices...55 Appendix E.Limited Warranty...56 Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7

5 Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7

6 .Introduction to Cactus Technologies Industrial Grade CF -3XX/-3XX-P/-3XX-WP Series Products Features: Solid state design with no moving parts Industry standard CF Type I form factor Supports TrueIDE Mode Supports ATA PIO Modes -6 in TrueIDE Mode Supports MultiWord DMA Modes -4 in TrueIDE Mode Supports UDMA Modes -4 in TrueIDE Mode Supports ATA S.M.A.R.T. Feature Set External Write Protect switch option available High reliability, MTBF > 4,, hrs. Overview: Cactus Technologies CompactFlash Memory Card (CF) is a high capacity solidstate flash memory product that complies with the Personal Computer Memory Card International Association (PCMCIA) ATA (PC Card ATA) standard. It also supports True IDE Mode, which is electrically compatible with an IDE disk drive. CompactFlash Memory Cards provide up to 32GB of formatted storage capacity in the CF Type I form factor. Cactus Technologies Industrial Grade CF products use high quality flash memory from well known vendors, such as Toshiba Corporation. In addition, it includes an oncard intelligent controller that manages interface protocols, data storage and retrieval as well as ECC, defect handling and diagnostics, power management, and clock control. Enhanced error correction, < error in 4 bits read Intelligent power management to reduce power consumption Dual voltage support: 3.3V/5.V Additional features for -3XX-P series: ATA Security Feature Set CTLock. This feature allows the card to be locked to a specific host. CTPurge. This feature allows the host to securely erase the contents of the card using procedures in published standards. CTWProt. This feature allows for both software and hardware initiated write protect function. External Write Protect switch is available on the -3XX-WP series products. Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7

7 .. Supported Standards Cactus Technologies CompactFlash Memory Cards are fully electrically compatible with the following specifications: PCMCIA PC Card Standard v2. PCMCIA PC Card ATA Specification CompactFlash Specification 4. ATA Specification published by ANSI: X3.22 AT Attachment Interface for Disk Drives.2. Product Features Cactus Technologies Industrial Compact Flash Cards contain a high level, intelligent controller. This intelligent controller provides many capabilities not found in other types of memory cards. These capabilities include the following: Standard ATA register and command set (same as found on most magnetic disk drives). Manages details of erasing and programming flash memory independent of the host system Sophisticated defect managing capabilities (similar to magnetic disk drives). Sophisticated system for error recovery using powerful error correction code (ECC). Intelligent power management for low power operation..2.. Host and Technology Independence Cactus Technologies Industrial CF Cards appears as a standard ATA disk drive to the host system. The card utilizes a 52-byte sector which is the same as that in an IDE magnetic disk drive. To write or read a sector (or multiple sectors), the host computer software simply issues an ATA Read or Write command to the card as per the ATA protocol. The host software then waits for the command to complete. The host system does not get involved in the details of how the flash memory is erased, programmed or read as this is all managed by the built-in controller in the card. Also, with the intelligent on-board controller, the host system software will not require changing as new flash memory evolves. Thus, systems that support the Cactus Technologies Industrial CF products today will continue to work with future Cactus Technologies Industrial CF cards built with new flash technology without having to update or change host software Defect and Error Management Cactus Technologies Industrial CF cards contain a sophisticated defect and error management system similar to those found in magnetic disk drives. The defect management is completely transparent to the host and does not consume any user data space. The soft error rate for Cactus Technologies Industrial CF cards is much lower than that of magnetic disk drives. In the extremely rare case where a read error does occur, the card has sophisticated ECC to recover the data. Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 2

8 These defect and error management systems, coupled with the solid-state construction, give Cactus Technologies Industrial CF cards unparalleled reliability Intelligent Power Management Cactus Technologies Industrial CF cards employ sophisticated power management algorithms to conserve power. Upon completion of a command, the card will automatically enter sleep mode if no further commands are received. In most situations, the card will be in sleep mode except when the host is accessing it, thus conserving power. The delay from command completion to entering sleep mode can be adjusted. When the card is in sleep mode, any command issued to the card will cause it to exit sleep and respond Power Supply Requirements This is a dual voltage product, which means it will operate at a voltage range of 3.3 volts ±% or 5. volts ± %. Per the PCMCIA specification Section 2.., the host system must apply volts in order to change a voltage range. This same procedure of providing volts to the card is required if the host system applies an input voltage outside the desired voltage by more than 2%. This means less than 4. volts for the 5. volt range and less than 2.7 volts for the 3.3 volt range. Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 3

9 2.Product Specifications For all the following specifications, values are defined at ambient temperature and nominal supply voltage unless otherwise stated. 2.. System Environmental Specifications Table 2-. Environmental Specifications Cactus Technologies CF Products Temperature Operating: C to +7 C (Standard) -45 C to +9 C (Extended) Humidity Acoustic Noise Vibration Shock Altitude (relative to sea level) Operating & Non- Operating: Operating & Non- Operating: Operating & Non- Operating: Operating & Non- Operating: 8% to 95%, non-condensing db 3 G peak to peak maximum 3, G maximum, feet maximum 2.2. System Power Requirements Table 2-2. Power Requirements Cactus Technologies Industrial CF Products DC Input Voltage (VCC) mv max. ripple (p-p) (Maximum Average Value) See Notes. GB or lower capacities 2GB or higher capacities Sleep: Reading: Writing: Sleep: Reading: Writing: 5.V ±% 25 µa 85 ma 85 ma 5uA 22mA 8mA NOTES: All values quoted are typical at ambient temperature and nominal supply voltage unless otherwise stated. Sleep mode is specified under the condition that all card inputs are static CMOS levels and in a Not Busy operating state. Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 4

10 2.3. System Performance All performance numbers are typical values assuming the card controller is in the default (i.e., fastest) mode. Table 2-3. Performance Start Up Times Reset to ready: 35 msec typical Read Transfer Rate up to 35. Mbytes/sec * Write Transfer Rate up to 2. Mbytes/sec *. * Please note that for maximum performance in TrueIDE UDMA modes, proper termination and PCB layout guidelines as described in the ATA specifications must be followed to minimize signal integrity problems. Maximum transfer rates are achieved on 2GB or higher capacity cards System Reliability Table 2-4. Reliability MTBF (@ 25 C) Data Reliability Endurance: > 4,, hours < non-recoverable error in 4 bits READ > 2,, erase/program cycles 2.5. Physical Specifications The following sections provide the physical specifications for Cactus Technologies Industrial CompactFlash products CompactFlash Physical Specifications Refer to Table 2-5 and see Figures 2- and 2-2 for CompactFlash Memory Card physical specifications and dimensions. Table 2-5. CompactFlash Physical Specifications Weight: Length: Width: Thickness:.4 g (.4 oz) typical, 4.2 g (.5 oz) maximum 36.4 ±.5 mm (.433 ±.6 in) 42.8 ±. mm (.685 ±.4 in) 3.3 mm ±. mm (.3 ±.4 in) (Excluding Lip) Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 5

11 Figure 2-. CompactFlash Memory Card Dimensions Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 6

12 Figure 2-2. CompactFlash Memory Card w/write Protect switch Dimensions Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 7

13 2.6. Capacity Specifications Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 8

14 Cactus Technologies offers CompactFlash products in the following capacities: 32M*, 64M*, 28M, 256M, 52M, G, 2G, 4G, 8G, 6G and 32G Note: Minimum capacity is 28MB. For customers with legacy systems that can only accept 32MB or 64MB, we can manufacture these capacities by downsizing 28M cards. Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 9

15 3.Interface Description The following sections provide detailed information on the Cactus Technologies Industrial CompactFlash card interface. 3.. CF Pin Assignments and Pin Type The signal/pin assignments are listed in Table 3-6. Low active signals have a - prefix. Pin types are Input, Output or Input/Output. Sections 3.3. to define the DC characteristics for all input and output type structures. Table 3-6. CompactFlash Pin Assignments and Pin Type PC Card Memory Mode PC Card I/O Mode True IDE Mode Pin Pin Pin Signal Typ Pin Signal Typ Pin Signal Num Name e Num Name e Num Name Pin Type GND GND GND 2 D3 I/O 2 D3 I/O 2 D3 I/O 3 D4 I/O 3 D4 I/O 3 D4 I/O 4 D5 I/O 4 D5 I/O 4 D5 I/O 5 D6 I/O 5 D6 I/O 5 D6 I/O 6 D7 I/O 6 D7 I/O 6 D7 I/O 7 -CE I 7 -CE I 7 -CS I 8 A I 8 A I 8 A 2 I 9 -OE I 9 -OE I 9 -ATA SEL I A9 I A9 I A9 2 I A8 I A8 I A8 2 I 2 A7 I 2 A7 I 2 A7 2 I 3 VCC 3 VCC 3 VCC 4 A6 I 4 A6 I 4 A6 2 I 5 A5 I 5 A5 I 5 A5 2 I 6 A4 I 6 A4 I 6 A4 2 I 7 A3 I 7 A3 I 7 A3 2 I 8 A2 I 8 A2 I 8 A2 I 9 A I 9 A I 9 A I 2 A I 2 A I 2 A I 2 D I/O 2 D I/O 2 D I/O 22 D I/O 22 D I/O 22 D I/O 23 D2 I/O 23 D2 I/O 23 D2 I/O 24 WP O 24 -IOIS6 O 24 -IOCS6 O 25 -CD2 O 25 -CD2 O 25 -CD2 O 26 -CD O 26 -CD O 26 -CD O 27 D I/O 27 D I/O 27 D I/O 28 D2 I/O 28 D2 I/O 28 D2 I/O 29 D3 I/O 29 D3 I/O 29 D3 I/O 3 D4 I/O 3 D4 I/O 3 D4 I/O 3 D5 I/O 3 D5 I/O 3 D5 I/O 32 -CE2 I 32 -CE2 I 32 -CS I 33 -VS O 33 -VS O 33 -VS O -IORD -IORD -IORD 34 I 34 I 34 HSTROBE 5 -HDMARDY IOWR I 35 -IOWR I 35 -IOWR I STOP WE I 36 -WE I 36 -WE 3 I I Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7

16 PC Card Memory Mode PC Card I/O Mode True IDE Mode 37 RDY/BSY O 37 IREQ O 37 INTRQ O 38 VCC 38 VCC 38 VCC 39 -CSEL I 39 -CSEL I 39 -CSEL I 4 -VS2 O 4 -VS2 O 4 -VS2 O 4 RESET I 4 RESET I 4 -RESET I IORDY 42 -WAIT O 42 -WAIT O 42 -DDMARDY 5 DSTROBE INPACK O 43 -INPACK O 43 DMARQ O 44 -REG I 44 -REG I 44 -DMACK I 45 BVD2 I/O 45 -SPKR I/O 45 -DASP I/O 46 BVD I/O 46 -STSCHG I/O 46 -PDIAG I/O 47 D8 I/O 47 D8 I/O 47 D8 I/O 48 D9 I/O 48 D9 I/O 48 D9 I/O 49 D I/O 49 D I/O 49 D I/O 5 GND 5 GND 5 GND NOTE:. These signals are required only for 6-bit access and not required when installed in 8-bit systems. For lowest power dissipation, leave these signals open. 2. Should be grounded by the host. 3. Should be tied to VCC by the host. 4. Please refer to Section 3.3 for definitions of In, Out type. 5. Signal usage when UDMA write protocol is active. 6. Signal usage when UDMA read protocol is active. 7. Signal usage when UDMA protocol is active Signal Description O Cactus Technologies Industrial CompactFlash products can be configured to operate in either I/O mode or memory mode as per the PCMCIA Release 2. specification. The configuration of the CompactFlash cards are controlled using the standard PCMCIA configuration registers starting at address 2h in the Attribute Memory space of the CompactFlash Memory Card. Cactus Technologies Industrial CompactFlash cards also supports a TrueIDE mode. This mode is entered by grounding the OE pin on power up. Table 3-7 describes the I/O signals. Signals whose source is the host are designated as inputs while signals that the CompactFlash Memory Card sources are outputs. The CompactFlash Card logic levels conform to those specified in the PCMCIA Release 2. Specification. See Section 3.3 for definitions of Input and Output type. Table 3-7. Signal Description Signal Name Dir. Description A A (CF Card Memory Mode) A A (CF Card I/O Mode) A2 A (True IDE Mode) A A3 (True IDE Mode) BVD (CF Card Memory Mode) I I I/O These address lines along with the -REG signal are used to select the following: The I/O port address registers within the CompactFlash Card, the memory mapped port address registers within the card, a byte in the card's information structure and its configuration control and status registers. This signal is the same as the CF Card Memory Mode signal. In True IDE Mode only A[2:] is used to select the one of eight registers in the Task File. In True IDE Mode these remaining address lines should be grounded by the host. This signal is asserted high as the BVD signal since a battery is not used with this product. Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7

17 Signal Name Dir. Description -STSCHG (CF Card I/O Mode) Status Changed -PDIAG (True IDE Mode) BVD2 (CF Card Memory Mode) -SPKR (CF Card I/O Mode) -DASP (True IDE Mode) -CD, -CD2 (CF Card Memory Mode) -CD, -CD2 (CF Card I/O Mode) -CD, -CD2 (True IDE Mode) -CE, -CE2 (CF Card Memory Mode) Card Enable -CE, -CE2 (CF Card I/O Mode) Card Enable -CS, -CS (True IDE Mode) -CSEL (CF Card Memory Mode) -CSEL (CF Card I/O Mode) -CSEL (True IDE Mode) D5 D (CF Card Memory Mode) D5 D (CF Card I/O Mode) D5 D (True IDE Mode) GND (CF Card Memory Mode) GND (CF Card I/O Mode) GND (True IDE Mode) -INPACK (CF Card Memory Mode) I/O O I I I/O This signal is asserted low to alert the host to changes in the RDY/-BSY and Write Protect states, while the I/O interface is configured. Its use is controlled by the Card Config and Status Register. In the True IDE Mode, this input/output is the Pass Diagnostic signal in the Master/Slave handshake protocol. This output line is always driven to a high state in Memory Mode since a battery is not required for this product. This output line is always driven to a high state in I/O Mode since this product does not support the audio function. In the True IDE Mode, this input/output is the Disk Active/Slave Present signal in the Master/Slave handshake protocol. These Card Detect pins are connected to ground on the CompactFlash Card. They are used by the host to determine if the card is fully inserted into its socket. This signal is the same for all modes. This signal is the same for all modes. These input signals are used both to select the card and to indicate to the card whether a byte or a word operation is being performed. -CE2 always accesses the odd byte of the word. -CE accesses the even byte or the Odd byte of the word depending on A and -CE2. A multiplexing scheme based on A, -CE, and -CE2 allows 8 bit hosts to access all data on D-D7. See Tables 3-, 3-2, 3-5, and 3-6. This signal is the same as the CF Card Memory Mode signal. In the True IDE Mode -CS is the chip select for the task file registers while -CS is used to select the Alternate Status Register and the Device Control Register. This signal is not used for this mode. This signal is not used for this mode. This internally pulled up signal is used to configure this device as a Master or a Slave when configured in the True IDE Mode. When this pin is grounded, this device is configured as a Master. When the pin is open, this device is configured as a Slave. These lines carry the Data, Commands and Status information between the host and the controller. D is the LSB of the Even Byte of the Word. D8 is the LSB of the Odd Byte of the Word. These signals are the same as the CF Card Memory Mode signal. In True IDE Mode all Task File operations occur in byte mode on the low order bus D-D7 while all data transfers are 6 bits using D-D5. -- Ground. O This signal is the same for all modes. This signal is the same for all modes. This signal is not used in this mode. -INPACK (CF Card I/O Mode) Input Acknowledge DMARQ (True IDE Mode) The Input Acknowledge signal is asserted by the CompactFlash Card when the card is selected and responding to an I/O read cycle at the address that is on the address bus. This signal is used by the host to control the enable of any input data buffers between the card and the CPU. In True IDE Mode, this pin is an output from the card to request DMA mode transfer. Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 2

18 Signal Name Dir. Description -IORD (CF Card Memory Mode) -IORD (CF Card I/O Mode) -IORD (True IDE Mode, UDMA not active) -HDMARDY (TrueIDE Mode, UDMA read) HSTROBE (TrueIDE Mode, UDMA write) -IOWR (CF Card Memory Mode) -IOWR (CF Card I/O Mode) -IOWR (True IDE Mode, UDMA not active) STOP (TrueIDE Mode, UDMA active) -OE (CF Card Memory Mode) -OE (CF Card I/O Mode) -ATA SEL (True IDE Mode) RDY/-BSY (CF Card Memory Mode) -IREQ (CF Card I/O Mode) INTRQ (True IDE Mode) -REG (CF Card Memory Mode) Attribute Memory Select -REG (CF Card I/O Mode) -DMACK (True IDE Mode) RESET (CF Card Memory Mode) RESET (CF Card I/O Mode) I I I O I I This signal is not used in this mode. This is an I/O Read strobe generated by the host. This signal gates I/O data onto the bus from the CompactFlash Card when the card is configured to use the I/O interface. In True IDE Mode, when UDMA protocol is not active, this signal has the same function as in CF Card I/O Mode. In TrueIDE Mode, when UDMA read protocol is active, this signal is asserted by the host to indicate that it is ready to receive data-in bursts. In TrueIDE Mode, when UDMA write protocol is active, this signal is the data out strobe sent by the host. Data is latched by the device on both rising and falling edges of this signal. This signal is not used in this mode. The I/O Write strobe pulse is used to clock I/O data on the Card Data bus into the CompactFlash controller registers when the card is configured to use the I/O interface. The clocking will occur on the negative to positive edge of the signal (trailing edge). In True IDE Mode, when UDMA protocol is not active, this signal has the same function as in CF Card I/O Mode. In TrueIDE Mode, when UDMA protocol is active, host asserts this signal to terminate the UDMA transfer. This is an Output Enable strobe generated by the host interface. It is used to read data from the CompactFlash Card in Memory Mode and to read the CIS and configuration registers. In CF Card I/O Mode, this signal is used to read the CIS and configuration registers. To enable True IDE Mode this input should be grounded by the host. In Memory Mode this signal is set high when the CompactFlash Card is ready to accept a new data transfer operation and held low when the card is busy. The Host memory card socket must provide a pull-up resistor. At power up and at Reset, the RDY/-BSY signal is held low (busy) until the CompactFlash Card has completed its power up or reset function. No access of any type should be made to the CompactFlash Card during this time. The RDY/-BSY signal is held high (disabled from being busy) whenever the following condition is true: The CompactFlash Card has been powered up with +RESET continuously disconnected or asserted. I/O Operation After the CompactFlash Card has been configured for I/O operation, this signal is used as -Interrupt Request. This line is strobed low to generate a pulse mode interrupt or held low for a level mode interrupt. In True IDE Mode, this signal is the active high Interrupt Request to the host. This signal is used during Memory Cycles to distinguish between Common Memory and Register (Attribute) Memory accesses. High for Common Memory, Low for Attribute Memory. The signal must also be active (low) during I/O Cycles when the I/O address is on the Bus. In True IDE Mode, this is an input from the host to signal that the DMA request from the device has been acknowledged. When the pin is high, this signal resets the CompactFlash Card. The card is Reset only at power up if this pin is left high or open from power-up. The card is also reset when the Soft Reset bit in the Card Configuration Option Register is set. This signal is the same as the CF Card Memory Mode signal. Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 3

19 Signal Name Dir. Description -RESET (True IDE Mode) VCC (CF Card Memory Mode) VCC (CF Card I/O Mode) VCC (True IDE Mode) -VS -VS2 (CF Card Memory Mode) -VS -VS2 (CF Card I/O Mode) -VS -VS2 (True IDE Mode) -WAIT (CF Card Memory Mode) -WAIT (CF Card I/O Mode) -IORDY (True IDE Mode, UDMA not active) -DDMARDY (TrueIDE Mode, UDMA write active) DSTROBE (TrueIDE Mode, UDMA read active) -WE (CF Card Memory Mode) -WE (CF Card I/O Mode) Reserved (True IDE Mode) WP (CF Card Memory Mode) Write Protect -IOIS6 (CF Card I/O Mode) -IOCS6 (True IDE Mode) In the True IDE Mode this input pin is the active low hardware reset from the host V, +3.3 V power. O O I O This signal is the same for all modes. This signal is the same for all modes. Voltage Sense Signals. -VS is grounded so that the CompactFlash Card CIS can be read at 3.3 volts and -VS2 is open and reserved by CF Card for a secondary voltage. This signal is the same for all modes. This signal is the same for all modes. The WAIT signal is driven by the CompactFlash Card to signal to the host to delay completion of the memory cycle in progress. The WAIT signal is driven by the CompactFlash Card to signal to the host to delay completion of the I/O cycle in progress. In TrueIDE Mode, when UDMA protocol is not active, this signal is driven by the device to extend the I/O cycle in progress. In TrueIDE Mode, when UDMA write protocol is active, this signal is asserted by the device to indicate that it is ready to receive a data out burst. In TrueIDE Mode, when UDMA read protocol is active, this signal is the data strobe sent by the device to the host. The host latches data on both the rising and falling edges of this signal. This is a signal driven by the host and used for strobing memory write data to the registers of the CompactFlash Card when the card is configured in the memory interface mode. It is also used for writing the configuration registers. In CF Card I/O Mode, this signal is used for writing the configuration registers. In True IDE Mode this input signal is not used and should be connected to VCC by the host. Memory Mode The CompactFlash Card does not have a write protect switch. This signal is held low after the completion of the reset initialization sequence. I/O Operation When the CompactFlash Card is configured for I/O Operation, Pin 24 is used for the -I/O Selected is 6 Bit Port (-IOIS6) function. A Low signal indicates that a 6 bit or odd byte only operation can be performed at the addressed port. In True IDE Mode this output signal is asserted low when this device is expecting a word data transfer cycle Electrical Specification The following table defines all D.C. Characteristics for the CompactFlash Memory Card Series. Unless otherwise stated, conditions are: Vcc = 5V ± % or Vcc = 3.3V ± % Ta = -45 C to 9 C Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 4

20 3.3.. Absolute Maximum Ratings Parameter Symbol MIN MAX Units Storage Temperature Ts o C Operating Temperature T A o C Vcc with respect to GND Vcc V DC Characteristics Parameter Symbol MIN MAX Units Input Voltage Vin -.5 Vcc +.5 V Output Voltage Vout -.3 Vcc +.3 V Input Leakage Current I LI - ua Output Leakage Current I LO - ua Input/Output Capacitance C I/C o pf Operating Current Sleep Mode Active GB or below: 2GB or above: GB or below: 2GB or above: I CC ma AC Characteristics Cactus Technolgies CF Cards meet all the timing requirements as specified in CompactFlash Specification 3. and PCMCIA PC Card Standard v2.. Please refer to those documents for details on interface AC timing diagrams and specifications Card Configuration CompactFlash Memory Cards are identified by information in the Card Information Structure (CIS). The entries in Table 3-8 and Table 3-9 show how to access the various registers and address spaces in the memory cards. Table 3-8. Registers and Memory Space Decoding -CE2 -CE -REG -OE -WE A A9 A8-A4 A3 A2 A A SELECTED SPACE X X X X X XX X X X X Standby X X XX X X X Configuration Registers Read X X XX X X X X Common Memory Read (8 Bit D7-D) X X XX X X X X Common Memory Read (8 Bit D5-D8) X X XX X X X Common Memory Read (6 Bit D5- D) X X XX X X X Configuration Registers Write X X XX X X X X Common Memory Write (8 Bit D7-D) Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 5

21 -CE2 -CE -REG -OE -WE A A9 A8-A4 A3 A2 A A SELECTED SPACE X X XX X X X X Common Memory Write (8 Bit D5-D8) X X XX X X X Common Memory Write (6 Bit D5- D) X XX X X X Card Information Structure Read XX X X X Invalid Access (CIS Write) X X XX X X X Invalid Access (Odd Attribute Read) X X XX X X X Invalid Access (Odd Attribute Write) X X XX X X X X Invalid Access (Odd Attribute Read) X X XX X X X X Invalid Access (Odd Attribute Write) Table 3-9. Configuration Registers Decoding -CE2 -CE -REG -OE -WE A A9 A8-A4 A3 A2 A A SELECTED REGISTER X Configuration Option Reg Read X Configuration Option Reg Write X Card Status Register Read X Card Status Register Write X Pin Replacement Register Read X Pin Replacement Register Write X Socket and Copy Register Read X Socket and Copy Register Write NOTE: The location of the card configuration registers should always be read from the CIS since these locations may vary in future products. No writes should be performed to the CompactFlash Memory Card attribute memory except to the card configuration register addresses. All other attribute memory locations are reserved Attribute Memory Function Attribute memory is a space where CompactFlash Memory Card CIS and configurations registers are stored, and is limited to 8-bit wide accesses only at even addresses. As in the Main Memory Read functions, the signals -CE and -CE2 control the even-byte and odd-byte address, but only the even-byte data is valid during the Attribute Memory access. Refer to Table 3- for signal states and bus validity for the Attribute Memory function. Table 3-. Attribute Memory Function Function Mode -REG -CE2 -CE A9 A -OE -WE D5-D8 D7-D Standby Mode X H H X X X X High Z High Z Read Byte Access CIS ROM (8 bits) Write Byte Access CIS (8 bits) (Invalid) Read Byte Access Configuration (8 bits) Write Byte Access Configuration (8 bits) Read Word Access CIS (6 bits) Write Word Access CIS (6 bits) (Invalid) Read Word Access Configuration (6 bits) L H L L L L H High Z Even Byte L H L L L H L Do not care Even Byte L H L H L L H High Z Even Byte L H L H L H L Do not care Even Byte L L L L X L H Not Valid Even Byte L L L L X H L Do not care Even Byte L L L H X L H Not Valid Even Byte Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 6

22 Function Mode -REG -CE2 -CE A9 A -OE -WE D5-D8 D7-D Write Word Access Configuration (6 bits) L L L H X H L Do not care NOTE: The -CE signal or both the -OE signal and the -WE signal must be de-asserted between consecutive cycle operations Configuration Option Register (Address 2h in Attribute Memory) Even Byte The Configuration Option Register is used to configure the cards interface, address decoding and interrupt and to issue a soft reset to the CompactFlash Memory Card. Operation D7 D6 D5 D4 D3 D2 D D R/W SRESET LevlREQ Conf5 Conf4 Conf3 Conf2 Conf Conf SRESET Soft Reset Setting this bit to one (), waiting the minimum reset width time and returning to zero () places the CompactFlash Memory Card in the Reset state. Setting this bit to one () is equivalent to assertion of the +RESET signal except that the SRESET bit is not cleared. Returning this bit to zero () leaves the CompactFlash Memory Card in the same un-configured, Reset state as following power-up and hardware reset. This bit is set to zero () by power-up and hardware reset. Using the PC Card Soft Reset is considered a hard Reset by the ATA Commands. Contrast with Soft Reset in the Device Control Register. LevlREQ This bit is set to one () when Level Mode Interrupt is selected, and zero () when Pulse Mode is selected. Set to zero () by Reset. Conf5 Conf Configuration Index. Set to zero () by reset. It's used to select operation mode of the CompactFlash Memory Card as shown below. NOTE: Conf5 and Conf4 are reserved and must be written as zero (). Table 3-. Card Configurations Conf5 Conf4 Conf3 Conf2 Conf Conf Disk Card Mode Memory Mapped I/O Mapped, Any 6 byte system decoded boundary I/O Mapped, F-F7/3F6-3F7 I/O Mapped, 7-77/ Card Configuration and Status Register (Address 22h in Attribute Memory) The Card Configuration and Status Register contain information about the Card s condition. Table 3-2. Card Configuration and Status Register Organization Operation D7 D6 D5 D4 D3 D2 D D Read Changed SigChg IOis8 PwrDwn Int Write SigChg IOis8 PwrDwn Changed Indicates that one or both of the Pin Replacement register CRdy, or CWProt bits are set to one (). When the Changed bit is set, -STSCHG Pin 46 is held low if the SigChg bit is a One () and the CompactFlash Memory Card is configured for the I/O interface. Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 7

23 SigChg IOis8 PwrDwn Int This bit is set and reset by the host to enable and disable a state-change signal from the Status Register, the Changed bit control pin 46 the Changed Status signal. If no state change signal is desired, this bit should be set to zero () and pin 46 (-STSCHG) signal will be held high while the CompactFlash Memory Card is configured for I/O. The host sets this bit to a one () if the CompactFlash Memory Card is to be configured in an 8-bit I/O mode. The CompactFlash Card is always configured for both 8- and 6- bit I/O, so this bit is ignored. This bit indicates whether the host requests the CompactFlash Memory Card to be in the power saving or active mode. When the bit is one (), the CompactFlash Card enters a power down mode. When zero (), the host is requesting the CompactFlash Card to enter the active mode. The PC Card Rdy/-Bsy value becomes BUSY when this bit is changed. Rdy/-Bsy will not become Ready until the power state requested has been entered. The CompactFlash Card automatically powers down when it is idle and powers back up when it receives a command. This bit represents the internal state of the interrupt request. This value is available whether or not I/O interface has been configured. This signal remains true until the condition that caused the interrupt request has been serviced. If interrupts are disabled by the -IEN bit in the Device Control Register, this bit is a zero () Pin Replacement Register (Address 24h in Attribute Memory) Table 3-3. Pin Replacement Register Operation D7 D6 D5 D4 D3 D2 D D Read CRdy/-Bsy CWProt RRdy/-Bsy RWProt Write CRdy/-Bsy CWProt MRdy/-Bsy MWProt CRdy/-Bsy CWProt RRdy/-Bsy RWProt MRdy/-Bsy MWProt This bit is set to one () when the bit RRdy/-Bsy changes state. This bit can also be written by the host. This bit is set to one () when the RWprot changes state. This bit may also be written by the host. This bit is used to determine the internal state of the Rdy/-Bsy signal. This bit may be used to determine the state of the Ready/-Busy as this pin has been reallocated for use as Interrupt Request on an I/O card. When written, this bit acts as a mask for writing the corresponding bit CRdy/-Bsy. This bit is always zero () since the CompactFlash Memory Card does not have a Write Protect switch. When written, this bit acts as a mask for writing the corresponding bit CWProt. This bit acts as a mask for writing the corresponding bit CRdy/-Bsy. This bit when written acts as a mask for writing the corresponding bit CWProt. Table 3-4. Pin Replacement Changed Bit/Mask Bit Values Initial Value of (C) Status Written by Host C Bit M Bit Final C Bit Comments X Unchanged X Unchanged X Cleared by Host X Set by Host Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 8

24 Socket and Copy Register (Address 26h in Attribute Memory) This register contains additional configuration information. This register is always written by the system before writing the card s Configuration Index Register. Table 3-5. Socket and Copy Register Organization Operation D7 D6 D5 D4 D3 D2 D D Read Reserved Drive # Write Drive # () X X X X Reserved This bit is reserved for future standardization. This bit must be set to zero () by the software when the register is written. Drive # This bit indicates the drive number of the card if twin card configuration is supported. X The socket number is ignored by the CompactFlash Memory Card I/O Transfer Function The I/O transfer to or from the CompactFlash Memory Card can be either 8 or 6 bits. When a 6-bit accessible port is addressed, the signal -IOIS6 is asserted by the CompactFlash Card. Otherwise, the -IOIS6 signal is de-asserted. When a 6-bit transfer is attempted, and the -IOIS6 signal is not asserted by the CompactFlash Card, the system must generate a pair of 8-bit references to access the word s even byte and odd byte. The CompactFlash Card permits both 8- and 6-bit accesses to all of its I/O addresses, so -IOIS6 is asserted for all addresses to which the CompactFlash Card responds (refer to Table 3-6). Table 3-6. I/O Function Function Code -REG -CE2 -CE A -IORD -IOWR D5-D8 D7-D Standby Mode X H H X X X High Z High Z Byte Input Access (8 bits) Byte Output Access (8 bits) L L L L H H H H L L L L L H L H L L H H H H L L High Z High Z Do not care Do not care Even-Byte Odd-Byte Even-Byte Odd-Byte Word Input Access (6 bits) L L L L L H Odd-Byte Even-Byte Word Output Access (6 bits) L L L L H L Odd-Byte Even-Byte I/O Read Inhibit H X X X L H Do not care Do not care I/O Write Inhibit H X X X H L High Z High Z High Byte Input Only (8 bits) L L H X L H Odd-Byte High Z High Byte Output Only (8 bits) L L H X H L Odd-Byte Do not care 3.6. Common Memory Transfer Function The Common Memory transfer to or from the CompactFlash card can be either 8 or 6 bits. The CompactFlash cards permit both 8- and 6-bit accesses to all of its Common addresses (refer to Table 3-7). Table 3-7. Common Memory Function Function Code -REG -CE2 -CE A -OE -WE D5-D8 D7-D Standby Mode X H H X X X High Z High Z Byte ReadAccess (8 bits) H H H H L L L H L L H H High Z High Z Even-Byte Odd-Byte Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 9

25 Function Code -REG -CE2 -CE A -OE -WE D5-D8 D7-D Byte Write Access (8 bits) Word Read Access (6 bits) Word Write Access (6 bits) Odd Byte Read Only (8 bits) Odd Byte Write Only (8 bits) H H H H L L L H H H L L Do not care Do not care Even-Byte Odd-Byte H L L X L H Odd-Byte Even-Byte H L L X H L Odd-Byte Even-Byte H L H X L H Odd-Byte High Z H L H X H L Odd-Byte Do not care 3.7. True IDE Mode I/O Transfer Function The CompactFlash card can be configured in a True IDE Mode of operation. This CompactFlash card is configured in this mode only when the -OE input signal is grounded by the host when power is applied to the card. In True IDE Mode, the CF Card protocol and configuration are disabled and only I/O operations to the Task File and Data Register are allowed. In addition, No Memory or Attribute Registers are accessible to the host. NOTE: Removing and reinserting the CompactFlash Memory Card while the host computer s power is on will reconfigure the CompactFlash Card to PC Card ATA mode from the original True IDE Mode. To configure the CompactFlash Card in True IDE Mode, the 5- pin socket must be power cycled with the CompactFlash Card inserted and -OE (output enable) grounded by the host. Table 3-8 defines the function of the operations for the True IDE Mode. Table 3-8. IDE Mode I/O Function Function Code -CE2 -CE A -IORD -IOWR D5-D8 D7-D Invalid Mode L L X X X High Z High Z Standby Mode H H X X X High Z High Z Task File Write H L -7h H L Do not care Data In Task File Read H L -7h L H High Z Data Out Data Register Write H L H L Odd-Byte In Data Register Read H L L H Odd-Byte Out Even-Byte In Even-Byte Out Control Register Write L H 6h H L Do not care Control In Alt Status Read L H 6h L H High Z Status Out 4.ATA Drive Register Set Definition and Protocol The CompactFlash Memory Card can be configured as a high performance I/O device through the following ways: Standard PC-AT disk I/O address spaces Fh-F7h, 3F6h-3F7h (primary); 7h-77h, 376h-377h (secondary) with IRQ 4 (or other available IRQ). Any system decoded 6-byte I/O block using any available IRQ. Memory space. Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 2

26 The communication to or from the CompactFlash Memory Card is done using the Task File registers, which provide all the necessary registers for control and status information. The PC Card interface connects peripherals to the host using four register mapping methods. Table 4-9 is a detailed description of these methods. Config Index IO or Memory Table 4-9. I/O Configurations Standard Configurations Address Drive # Description Memory -F, 4-7FF Memory Mapped I/O XX-XXF I/O Mapped 6 Contiguous Registers 2 I/O F-F7, 3F6-3F7 Primary I/O Mapped Drive 2 I/O F-F7, 3F6-3F7 Primary I/O Mapped Drive 3 I/O 7-77, Secondary I/O Mapped Drive 3 I/O 7-77, Secondary I/O Mapped Drive 4.. I/O Primary and Secondary Address Configurations Table 4-2. Primary and Secondary I/O Decoding -REG A9-A4 A3 A2 A A -IORD= -IOWR= Note F(7) Even RD Data Even WR Data, 2 F(7) Error Register Features F(7) Sector Count Sector Count F(7) Sector No. Sector No. F(7) Cylinder Low Cylinder Low F(7) Cylinder High Cylinder High F(7) Select Card/Head Select Card/Head F(7) Status Command 3F(37) Alt Status Device Control 3F(37) Drive Address Reserved. Register is accessed with -CE low and -CE2 low (and A = Do not care) as a word register on the combined Odd Data Bus and Even Data Bus (D5-D). This register may also be accessed by a pair of byte accesses to the offset with -CE low and -CE2 high. Note that the address space of this word register overlaps the address space of the Error and Feature byte-wide registers that lie at offset. When accessed twice as byte register with -CE low, the first byte to be accessed is the even byte of the word and the second byte accessed is the odd byte of the equivalent word access. 2. A byte access to register with -CE high and -CE2 low accesses the error (read) or feature (write) register Contiguous I/O Mapped Addressing When the system decodes a contiguous block of I/O registers to select the CompactFlash Memory Card, the registers are accessed in the block of I/O space decoded by the system in Table 4-2. Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 2

27 Table 4-2. Contiguous I/O Decoding -REG A3 A2 A A Offset -IORD= -IOWR= Notes Even RD Data Even WR Data Error Features 2 2 Sector Count Sector Count 3 Sector No. Sector No. 4 Cylinder Low Cylinder Low 5 Cylinder High Cylinder High 6 Select Card/Head Select Card/Head 7 Status Command 8 Dup Even RD Data Dup. Even WR Data 2 9 Dup. Odd RD Data Dup. Odd WR Data 2 D Dup. Error Dup. Features 2 E Alt Status Device Ctl F Drive Address Reserved NOTES:. Register is accessed with -CE low and -CE2 low (and A = Do not care) as a word register on the combined Odd Data Bus and Even Data Bus (D5-D). This register may also be accessed by a pair of byte accesses to the offset with -CE low and -CE2 high. Note that the address space of this word register overlaps the address space of the Error and Feature bytewide registers that lie at offset. When accessed twice as byte register with -CE low, the first byte to be accessed is the even byte of the word and the second byte accessed is the odd byte of the equivalent word access. A byte access to register with -CE high and -CE2 low accesses the error (read) or feature (write) register. 2. Registers at offset 8, 9 and D are non-overlapping duplicates of the registers at offset and. Register 8 is equivalent to register, while register 9 accesses the odd byte. Therefore, if the registers are byte accessed in the order 9 then 8 the data will be transferred odd byte then even byte. Repeated byte accesses to register 8 or will access consecutive (even than odd) bytes from the data buffer. Repeated word accesses to register 8, 9 or will access consecutive words from the data buffer. Repeated byte accesses to register 9 are not supported. However, repeated alternating byte accesses to registers 8 then 9 will access consecutive (even then odd) bytes from the data buffer. Byte accesses to register 9 access only the odd byte of the data. 3. Address lines that are not indicated are ignored by the CompactFlash Memory Card for accessing all the registers in this table Memory Mapped Addressing When the CompactFlash Memory Card registers are accessed via memory references, the registers appear in the common memory space window: -2K bytes as shown in Table Table Memory Mapped Decoding -REG A A9-A4 A3 A2 A A Offset -OE= -WE= Notes X Even RD Data Even WR Data X Error Features 2 X 2 Sector Count Sector Count X 3 Sector No. Sector No. X 4 Cylinder Low Cylinder Low X 5 Cylinder High Cylinder High X 6 Select Card/Head Select Card/Head Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 22

28 -REG A A9-A4 A3 A2 A A Offset -OE= -WE= Notes X 7 Status Command X 8 Dup. Even RD Data Dup. Even WR Data X 9 Dup. Odd RD Data Dup. Odd WR Data X D Dup. Error Dup. Features 2 X E Alt Status Device Ctl X F Drive Address Reserved X X X X 8 Even RD Data Even WR Data 3 X X X X 9 Odd RD Data Odd WR Data 3 NOTES:. Register is accessed with -CE low and -CE2 low as a word register on the combined Odd Data Bus and Even Data Bus (D5-D). This register may also be accessed by a pair of byte accesses to the offset with -CE low and -CE2 high. Note that the address space of this word register overlaps the address space of the Error and Feature byte-wide registers that lie at offset. When accessed twice as byte register with -CE low, the first byte to be accessed is the even byte of the word and the second byte accessed is the odd byte of the equivalent word access. A byte access to address with -CE high and -CE2 low accesses the error (read) or feature (write) register. 2. Registers at offset 8, 9 and D are non-overlapping duplicates of the registers at offset and. Register 8 is equivalent to register, while register 9 accesses the odd byte. Therefore, if the registers are byte accessed in the order 9 then 8 the data will be transferred odd byte then even byte. Repeated byte accesses to register 8 or will access consecutive (even then odd) bytes from the data buffer. Repeated word accesses to register 8, 9 or will access consecutive words from the data buffer. Repeated byte accesses to register 9 are not supported. However, repeated alternating byte accesses to registers 8 then 9 will access consecutive (even then odd) bytes from the data buffer. Byte accesses to register 9 access only the odd byte of the data. 3. Accesses to even addresses between 4h and 7FFh access register 8. Accesses to odd addresses between 4h and 7FFh access register 9. This KByte memory window to the data register is provided so that hosts can perform memory to memory block moves to the data register when the register lies in memory space. Some hosts, such as the X86 processors, must increment both the source and destination addresses when executing the memory to memory block move instruction. Some PC Card socket adapters also have auto incrementing address logic embedded within them. This address window allows these hosts and adapters to function efficiently. Note that this entire window accesses the Data Register FIFO and does not allow random access to the data buffer within the CompactFlash Memory Card True IDE Mode Addressing 2 2 When the CompactFlash Memory Card is configured in the True IDE Mode the I/O decoding is as listed in Table Table True IDE Mode I/O Decoding -CE2 -CE A2 A A -IORD= -IOWR= Even RD Data Even WR Data Error Register Features Sector Count Sector Count Sector No. Sector No. Cylinder Low Cylinder Low Cactus Technologies Limited Industrial Grade Compact Flash -3XX/-3XX-P/-3XX-WP Series Product Manual v2.7 23