Technical Report. EV10_Running_Modes_ doc. EV10 - Running Modes

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1 Technical Report EV10_Running_Modes_ doc EV10 - Running Modes

2 Revisions Revisions Revision Paragraph affected Changes Initial release Firmware download EEP_init Remove_driver Firmware_version Write_init Read_block Write_Block Write_same_byte 4.3 Firmware download Scan rate Software version 5 Timing requirements Driver commands: - Write init description - Write_same_word replaced by Write_same_byte Command frame format Checksum calculation Frame format Eeprom size Host must wait for the next S0S transition Frame format Frame format SE replies height bytes instead of four words Frame format Frame format Words replaced by bytes Block format Frame format Words replaced by bytes Block format Cmd Write_same_word replaced by Write_same_byte Frame format Words replaced by bytes Flow chart Word 1 of command frame modified New command Timings updated Timing requirement Transmission timings updated 2/27 EV10_Running_Modes

3 Contents EV10 - Running Modes Contents 1. Introduction DBP mode Serial MDS mode Pixel frame Command To enter in command mode Command frame Reply to a command frame Error handling: List of commands Scan Rate Software version APS Control Register Programming Download mode Driver download Firmware download EEP_INIT REMOVE_DRIVER FIRMWARE_VERSION WRITE_INIT READ_BLOCK WRITE_BLOCK WRITE_SAME_BYTE Firmware download: typical procedure Timing requirements Transmission Reception EV10_Running_Modes 3/27

4 Introduction 1. Introduction Pin Name I/O Descrition 1 SPEED / SS Input 2 POWER - Power supply D/2D LASER ENABLE SCAN ENABLE Input 6 DBP / DATA OUT Output Signal output Speed select at reset / SS in serial MDS and download modes Low or not connected: high speed High: low speed High or not connected: 1D barcodes Low: 2D barcodes Input Low: the lighting is on only if pin 5 is also low High or not connected: the lighting is off Input Low: the scan engine is switched on High or not connected: the scan engine is off 7 SOS Output DBP: level change indicates the beginning of a new scan line Serial MDS: level change indicates the EV10 is ready to transmit or receive 8 GND - Ground 9 A0 / DATA IN Input Configuration bit at reset / DATA IN in serial MDS and download modes 10 A1 / CLK IN Input Configuration bit at reset / CLK IN in serial MDS and download modes A1 A0 Mode 0 0 DBP mode 0 1 Serial MDS mode 1 0 Not used 1 1 Download mode 4/27 EV10_Running_Modes

5 Contents EV10 - Running Modes 2. DBP mode Please refer to the integration guide. EV10_Running_Modes 5/27

6 Serial MDS mode 3. Serial MDS mode EV10 HOST SCAN ENABLE SCAN ENABLE SPEED / SS SS A1 / CLK IN CLK A0 / DATA IN DATA OUT SOS SOS DATA OUT DATA IN SLAVE MASTER In serial MDS mode, the EV10 provides pixel frames that correspond to the video signal detected by its APS sensor. An image is composed of 2400 pixels. Each pixel is coded by a 10-bit word so the dynamic range for a pixel is The pixel frame transmitted by the EV10 consists of 1200 words of 20 bits. The master device control the flow of communication by providing the shift clock (CLK) and the slave enable signal (SS). When the slave (EV10) is ready to transmit or receive a message, it toggles the start of scan signal (SOS). At EV10 start-up, SPEED, A0 and A1 are configuration inputs. The levels applied on these pins must not be modified before the first high to low transition on the SOS output. 6/27 EV10_Running_Modes

7 Contents EV10 - Running Modes SPEED: When low before the first high to low transition of SOS => High speed mode - the scan engine works at its maximum frequency - data processing is shorter, pixel frames are quickly available - serial transmission can be used at its maximum speed - the consumption is slightly higher than in low speed mode When high before the first high to low transition of SOS => Low speed mode - the frequency of scan engine is reduce by half - data processing is longer - serial transmission cannot be used at its maximum speed - the consumption is lower than in high speed mode LASER ENABLE: When low, the lighting of the EV10 is on. When high or not connected, the lighting is off. The level can be change dynamically. The change is effective at the beginning of the next APS sensor acquisition. 1D/2D: When high or not connected, the 1D pixel line of the APS sensor is selected. This configuration is suitable to scan 1D barcodes. When high or not connected, the 2D pixel line of the APS sensor is selected. This configuration is suitable to scan 2D barcodes. EV10_Running_Modes 7/27

8 Serial MDS mode 3.1. Pixel frame SCAN ENABLE SPEED / SS A1 / CLK IN A0 / DATA IN SOS from EV10 DATA OUT from EV10 B19 B18 B17 B1 B0 B19 B18 B17 B1 B0 B19 B18 B17 B1 B0 B19 B18 B17 B1 B0 First word Second word Last word First word Pixel 0 Pixel 1 Pixel 2 Pixel 3 Pixel 2398 Pixel 2399 Pixel 0 Pixel 1 First frame (1200 words = 2400 pixels) Second frame (1200 words = 2400 pixels) : don't care 8/27 EV10_Running_Modes

9 Serial MDS mode 3.2. Command To enter in command mode Pixel frame (1200 words = 2400 pixels) Command frame SOS from EV10 SPEED / SS A1 / CLK IN A0 / DATA IN DATA OUT from EV10 B19 B18 B17 B1 B0 First word = 0x00099 B19 B18 B17 B1 B0 B19 B18 B17 B1 B0 B19 B18 B17 B1 B0 First word Second word Last word Pixel 0 Pixel 1 Pixel 2 Pixel 3 Pixel 2398 Pixel 2399 : don't care 9/27 EV10_Running_Modes

10 Serial MDS mode Command frame Pixel frame Command frame SOS from EV10 SPEED / SS A1 / CLK IN A0 / DATA IN B19 B18 B17 B1 B0 B19 B18 B17 B1 B0 B19 B18 B17 B1 B0 First word Second word Last word DATA OUT from EV10 : don't care 10/27 EV10_Running_Modes

11 Contents EV10 - Running Modes Reply to a command frame Command frame Reply to a command frame Pixel frame SOS from EV10 SPEED / SS A1 / CLK IN A0 / DATA IN DATA OUT from EV10 B19 B18 B17 B1 B0 B19 B18 B17 B1 B0 B19 B18 B17 B1 B0 First word Second word Last word : don't care EV10_Running_Modes 11/27

12 Serial MDS mode Error handling: If the EV10 doesn't toggle the SOS signal when it is expected, a transmission error occurred and the EV10 is waiting for clocks to transmit or receive a message. In such cases, after a timeout, the host (the master) must reset the EV10 (the slave) by placing a high level and then a low level on the SCAN ENABLE pin. For example, if the EV10 doesn't toggle the SOS signal after reception of the first byte of a command frame that means that a transmission error occurred, the EV10 is not entered in command mode and it is transmitting a new pixel frame List of commands Scan Rate Command frame: Word1 = 0x00039 Word2 = 8 most significant bits of the scan rate value Word3 = 8 less significant bits of the scan rate value Reply frame: No reply from the scan engine Software version Command frame: Word1 = 0x00024 Reply frame: ASCII string terminated by "\0" Word1 = Byte1 of the ASCII string (only the 8 less significant bits of the word are used) Word2 = Byte2 = WordN = ByteN ("\0") APS Control Register Programming Command frame: Word1 = 0x00041 Word2 = Byte1 (only the 8 less significant bits of word2 are used) Word3 = Byte2 Word4 = Byte3 Reply frame: No reply from the scan engine 12/27 EV10_Running_Modes

13 Contents EV10 - Running Modes EV10_Running_Modes 13/27 Byte 1 Byte 2 Byte 3 b7 b6 b5 B4 b3 b2 b1 b0 b7 b6 b5 b4 b3 b2 b1 b0 b7 b6 b5 b4 b3 b2 b1 b0 NOT USED OFFSET GAIN U N I T Y G A I N B I T I N V N O N L I N E A R

14 Download mode 4. Download mode EV10 HOST SCAN ENABLE SCAN ENABLE SPEED / SS SS A1 / CLK IN CLK A0 / DATA IN DATA OUT SOS SOS DATA OUT DATA IN SLAVE MASTER This mode is useful to upgrade the firmware embedded in the EV10. The download procedure is composed of two stages. The driver download: The driver combines the different functions necessary to erase, read from and write to the EEPROM memory of the scan engine. The first stage of this procedure consists in loading this driver into the RAM memory of the scan engine. The firmware download: The firmware is downloaded to the EV10 using a set of commands for the driver. Depending of the command received, the driver can read, erase or write data in the EEPROM memory of the scan engine. 14/27 EV10_Running_Modes

15 Contents EV10 - Running Modes Transmission SOS from EV10 SPEED / SS A1 / CLK IN A0 / DATA IN DATA OUT from EV10 B7 B6 B5 B1 B0 B7 B6 B5 B1 B0 B7 B6 B5 B1 B0 First byte (8 bits) Second byte (8 bits) Last byte (8 bits) : don't care Reception SOS from EV10 SPEED / SS A1 / CLK IN A0 / DATA IN B7 B6 B5 B1 B0 B7 B6 B5 B1 B0 B7 B6 B5 B1 B0 First byte (8 bits) Second byte (8 bits) Last byte (8 bits) DATA OUT from EV10 : don't care EV10_Running_Modes 15/27

16 Download mode 4.1. Driver download! Connect the scan engine to the host by following the diagram above.! The host must place: - a high level on A0 and A1 - a low level on SPEED - a low level on SCAN ENABLE to start the EV10 At start-up, A0, A1 and SPEED are configuration inputs. The levels applied on these pins must not be modified before the first high to low transition on the SOS output.! The host must wait the first high to low transition on the SOS output, and then send the auto-detection byte => AUTO-DETECTION = 0x00 The EV10 replies => HOST-DETECTED = 0x60 At this point, the scan engine is ready to receive the driver.! The host must open the driver file ( *.DRX ) and determine the number of bytes contained in this file. It must calculate the number of blocks to send to the scan engine by dividing the number of bytes in the file by 256.! The host must initiate driver download by sending => START_DWNL = 0xAA The EV10 requests the number of blocks => NB_OF_BLKS_RQST = 0x88 The host answers the number of blocks calculated (a byte) => NB_OF_BLOCKS The scan engine requests the blocks: BLOCK_NUMBER = 1 While (BLOCK_NUMBER < NB_OF_BLOCKS+1) { the EV10 requests a block => BLOCK_RQST = 0x80 => BLOCK_NUMBER the host reads the 256 bytes of the block in the driver file the host sends the 256 bytes of the block to the scan engine the EV10 requests the checksum of the block => CHK_RQST =0x7F the host calculates the checksum of the block and sends the 4 bytes of the checksum if (host_checksum == EV10_cheksum) { BLOCK_NUMBER++ } } After reception of the last block, the EV10 sends => DRIVER_DWNL_OK = 0xBB! At this point, the driver is ready to receive the firmware download commands. Note: Checksum calculation for driver download 255 CHECKSUM = BYTEi (256 i) i= 0 CHECKSUM = 32 bits 16/27 EV10_Running_Modes

17 Contents EV10 - Running Modes 4.2. Firmware download Driver commands The different functions implemented in the driver and their associated commands are listed below. Name Opcode Description Page EEP_INIT 0x11 Check that the driver is able to read from, erase or write to the EEPROM memory of the scan engine 18 REMOVE_DRIVER 0x12 Remove the driver from the scan engine 19 FIRMWARE_VERSION 0x13 Request the version of the firmware present in the EEPROM memory 20 WRITE_INIT 0x14 Perform no action 21 READ_BLOCK 0x15 Read a block in the EEPROM memory of the scan engine WRITE_BLOCK 0x16 Write a block in the EEPROM memory of the scan engine WRITE_SAME_BYTE 0x17 Write the same byte in a block of the EEPROM memory of the scan engine Command frame format: 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 32 bits 0x00 CMD PRM 1 PRM 2 PRM 3 PRM 4 PRM 5 PRM 6 PRM 7 PRM 8 CHECKSUM CMD: command PRM: parameter Note1: When a "word" or a "long" is transmitted, the most significant byte must be sent first. Note2: Checksum calculation for firmware download SIZE_BLCK 1 CHECKSUM = BLCK_BYTE (SIZE_BLCK i) i i= 0 BLCK_BYTE i = 8bits CHECKSUM = 32bits Using this formula, we obtain the following calculation for a command frame: CHECKSUM = COMMAND x 9 + PRM1 x 8 + PRM2 x 7 + PRM3 x 6 + PRM4 x 5 PRM5 x 4 + PRM6 x 3 + PRM7 x 2 + PRM8 x 1 This calculation must be made using a 32-bit format. EV10_Running_Modes 17/27

18 Download mode EEP_INIT Checks that the driver is able to read, erase or write the EEPROM memory installed in the scan engine. EEP_INIT must be sent before the following commands (mandatory): ERASE_ALL READ_BLOCK WRITE_BLOCK WRITE_SAME_WORD 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 32 bits 0x00 CMD PRM 1 PRM 2 PRM 3 PRM 4 PRM 5 PRM 6 PRM 7 PRM 8 CHECKSUM 0x00 0x11 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 Must be calculated If there is no error after reception of the command, the driver replies CMD_ACK = 0x32 The driver sends a different byte if there is a transmission error, a bad checksum or an incorrect parameter in the command frame. After execution of the command, the driver sends four bytes and a string in ASCII format terminated by the character "\0". 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits EEPROM SIZE S_0 S_1 S_2 S_3 S_4 S_5 S_6 S_7 MSB Byte2 Byte3 LSB "V" "E" "R" "S" "I" "O" "N" "\0" The four bytes represent the size of the EEPROM memory installed in the scan engine : SIZE_OF_EEP. If SIZE_OF_EEP = 0x , the EEPROM memory is not recognized by the driver. This means that the driver is not able to read, erase or write to the memory of the scan engine. The string represents the version of the driver firmware. The size of the string depends on the driver: - maximum size: 30 characters + 1 NULL character ("\0"). - minimum size 1 NULL character ("\0"). 18/27 EV10_Running_Modes

19 Contents EV10 - Running Modes REMOVE_DRIVER Removes the driver from the scan engine when: - the driver does not recognize the EEPROM memory installed in the scan engine and another driver must be downloaded to the scan engine. After reception of this command, the scan engine will initiate a new driver download sequence and wait for the byte AUTO-DETECTION (0x00). After sending this command, the host must wait the next transition on the SOS output before sending the AUTO-DETECTION byte. - the download of the EEPROM memory is completed. After reception of this command, the scan engine will wait for the host to switch off its power supply by placing a high level on the pin SCAN ENABLE. 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 32 bits 0x00 CMD PRM 1 PRM 2 PRM 3 PRM 4 PRM 5 PRM 6 PRM 7 PRM 8 CHECKSUM 0x00 0x12 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 Must be calculated If there is no error after reception of the command, the driver replies CMD_ACK = 0x32 The driver sends a different byte if there is a transmission error, a bad checksum or an incorrect parameter in the command frame. If there is no error after execution of the command, the driver replies CMD_DONE = 0x31 The driver sends a different byte if the execution of the command fails. EV10_Running_Modes 19/27

20 Download mode FIRMWARE_VERSION Gets the version of the firmware present in the EEPROM memory in the scan engine. 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 32 bits 0x00 CMD PRM 1 PRM 2 PRM 3 PRM 4 PRM 5 PRM 6 PRM 7 PRM 8 CHECKSUM 0x00 0x13 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 Must be calculated If there is no error after reception of the command, the driver replies CMD_ACK = 0x32 The driver sends a different byte if there is a transmission error, a bad checksum or an incorrect parameter in the command frame. After execution of the command, the driver sends height bytes and a string in ASCII format terminated by the character "\0". 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits Byte1 Byte2 Byte3 Byte4 Byte5 Byte6 Byte7 Byte8 S_0 S_1 S_2 S_3 S_4 S_5 S_6 S_7 Reserved "V" "E" "R" "S" "I" "O" "N" "\0" The size of the string depends on the firmware in the scan engine: - maximum size: 30 characters + 1 NULL character ("\0"). - minimum size 1 NULL character ("\0"). 20/27 EV10_Running_Modes

21 Contents EV10 - Running Modes WRITE_INIT Performs no action. This command exists only for compatibility purpose. 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 32 bits 0x00 CMD PRM 1 PRM 2 PRM 3 PRM 4 PRM 5 PRM 6 PRM 7 PRM 8 CHECKSUM 0x00 0x14 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 Must be calculated If there is no error after reception of the command, the driver replies CMD_ACK = 0x32 The driver sends a different byte if there is a transmission error, a bad checksum or an incorrect parameter in the command frame. The driver always replies CMD_DONE = 0x31 EV10_Running_Modes 21/27

22 Download mode READ_BLOCK Reads a block of the firmware present in the EEPROM memory in the scan engine. 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 32 bits 0x00 CMD PRM 1 PRM 2 PRM 3 PRM 4 PRM 5 PRM 6 PRM 7 PRM 8 CHECKSUM 0x00 0x15 BLOCK_SIZE ADDRESS 0x00 0x00 Must be calculated MSB LSB MSB Byte2 Byte3 LSB BLOCK_SIZE: ADDRESS: - number of bytes read in the EEPROM memory - must be 256 or less - points to bytes - must be compatible with the EEPROM memory size If there is no error after reception of the command, the driver replies CMD_ACK = 0x32 The driver sends a different byte if there is a transmission error, a bad checksum or an incorrect parameter in the command frame. After execution of the command, if there is no error the driver sends the block requested using the following format: 8 bits 8 bits 8 bits 32 bits BYTE_1 BYTE_2 BYTE_N CHECKSUM 22/27 EV10_Running_Modes

23 Contents EV10 - Running Modes WRITE_BLOCK Writes a firmware block to the EEPROM memory in the scan engine. 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 32 bits 0x00 CMD PRM 1 PRM 2 PRM 3 PRM 4 PRM 5 PRM 6 PRM 7 PRM 8 CHECKSUM 0x00 0x16 BLOCK_SIZE ADDRESS 0x00 0x00 Must be calculated MSB LSB MSB Byte2 Byte3 LSB BLOCK_SIZE: ADDRESS: - number of bytes written in the EEPROM memory - must be 256 or less - points to bytes - must be compatible with the EEPROM memory size If there is no error after reception of the command, the driver replies CMD_ACK = 0x32 The driver sends a different byte if there is a transmission error, a bad checksum or an incorrect parameter in the command frame. After reception of the CMD_ACK byte, the host sends the block using the following format: 8 bits 8 bits 8 bits 32 bits BYTE_1 BYTE_2 BYTE_N CHECKSUM If there is no error after execution of the command, the driver replies CMD_DONE = 0x31 The driver sends a different byte if the execution of the command fails. Note: block writing can take up to 3 seconds. EV10_Running_Modes 23/27

24 Download mode WRITE_SAME_BYTE Writes the same byte in a block of the EEPROM memory in the scan engine. 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 8 bits 32 bits 0x00 CMD PRM 1 PRM 2 PRM 3 PRM 4 PRM 5 PRM 6 PRM 7 PRM 8 CHECKSUM 0x00 0x17 BLOCK_SIZE ADDRESS BYTE 0x00 Must be calculated MSB LSB MSB Byte2 Byte3 LSB BLOCK_SIZE: ADDRESS: BYTE: - number of bytes written in the EEPROM memory - must be 256 or less - points on bytes - must be compatible with the EEPROM memory size - byte that will be written in the block of the EEPROM memory If there is no error after reception of the command, the driver replies CMD_ACK = 0x32 The driver sends a different byte if there is a transmission error, a bad checksum or an incorrect parameter in the command frame. If there is no error after execution of the command, the driver replies CMD_DONE = 0x31 The driver sends a different byte if the execution of the command fails. Note: block writing can take up to 3 seconds. 24/27 EV10_Running_Modes

25 Contents EV10 - Running Modes 4.3. Firmware download: typical procedure Preparation Select driver Auto-detection Download driver Send command EEP_INIT Receive EEP_Size EEP_Size = 0x Yes Send command FIRMWARE_VERSION Receive name of current firmware version Create save file Curr_Vers i = 0 No Send command REMOVE_DRIVER Select new driver Wait for SOS transition Send command READ_BLOCK (block_size = 256, address = i * 256 Receive block number i Checksum received = Checksum calculated No Yes Write block in file Curr_Vers i++ i < EEP_Size/256 Yes No Close file Curr_Vers Open file New_Vers Calculate File_Size (in bytes) File_Size < = EEP_Size No i = 0 Yes Read the 256 bytes of block i in file New_Vers Send command WRITE_BLOCK (block_size = 256, address = i * 256) Send the 256 bytes of block i i++ i < File_Size/256 No Yes Send command REMOVE_DRIVER EV10_Running_Modes 25/27

26 Timing requirements 5. Timing requirements 5.1. Transmission SPEED / SS t SU(SS_L - CLK IN_H) t W(SS) t C(CLK IN) t H(CLK IN_L - SS_H) A1 / CLK IN t D(SS_L - DATA OUT_V) t H(SS_H - DATA OUT_V) t D(CLK IN_H - DATA OUT_V) DATA OUT from EV10 Parameter Description High speed Low speed Min Max Min Max Unit t SU(SS_L CLK IN_H) Setup time, SS low before CLK IN high 23 (1) - 23 (1) - ns t C(CLK IN) Cycle time, CLK IN 190 (2) (3) - ns t D(SS_L DATA OUT_V) Delay time, SS low to DATA OUT valid 18 (4) 85 (5) 38 (6) 125 (7) ns t D(CLK IN_H DATA OUT_V) Delay time, CLK IN high to DATA OUT valid 35 (8) 93 (9) 65 (10) 143 (11) ns t H(CLK IN_L SS_H) Hold time, CLK IN low to SS high (12) (12) (12) (12) ns t H(SS_H DATA OUT_V) Hold time, DATA OUT valid after SS high 14 (13) 75 (14) 24 (15) 105 (16) ns t W(SS) Pulse duration, SS high 95 (17) (17) - ns Note: (1) symmetry with reception (2) t D(CLK IN_H DATA OUT_V) max * 2 rounded to 190ns (3) 32H (DSP) (4) 4H-2 (DSP) + 0 (MC74VHC1GT50) + 0 (TC7WH125FK) with H=5ns (5) 8H+17 (DSP) +15 (MC74VHC1GT50) + 13 (TC7WH125FK) with H=5ns (6) 4H-2 (DSP) + 0 (MC74VHC1GT50) + 0 (TC7WH125FK) with H=10ns (7) 8H+17 (DSP) + 15 (MC74VHC1GT50) + 13 (TC7WH125FK) with H=10ns (8) 6H+5 (DSP) + 0 (MC74VHC1GT50) + 0 (TC7WH125FK) with H=5ns (9) 10H+15 (DSP) + 15 (MC74VHC1GT50) + 13 (TC7WH125FK) with H=5ns (10) 6H+5 (DSP) + 0 (MC74VHC1GT50) + 0 (TC7WH125FK) with H=10ns (11) 10H+15 (DSP) + 15 (MC74VHC1GT50) + 13 (TC7WH125FK) with H=10ns (12) Don't care (13) 2H+4 (DSP) + 0 (MC74VHC1GT50) + 0 (TC7WH125FK) with H=5ns (14) 6H+17 (DSP) + 15 (MC74VHC1GT50) + 13 (TC7WH125FK) with H=5ns (15) 2H+4 (DSP) + 0 (MC74VHC1GT50) + 0 (TC7WH125FK) with H=10ns (16) 6H+17 (DSP) +15 (MC74VHC1GT50) + 13 (TC7WH125FK) with H=10ns (17) t C(CLK IN) /2 =>to be confirmed 26/27 EV10_Running_Modes

27 Contents EV10 - Running Modes 5.2. Reception SPEED / SS t SU(SS_L - CLK IN_H) t W(SS) t C(CLK IN) t H(CLK IN_L - SS_H) A1 / CLK IN t SU(DATA IN_V - CLK IN_L) t H(CLK IN_L - DATA_IN_V) DATA IN Parameter Description High speed Low speed Min Max Min Max Unit t SU(SS_L CLK IN_H) Setup time, SS low before CLK IN high 23 (1) - 23 (1) - ns t C(CLK IN) Cycle time, CLK IN 190 (2) (3) - ns t SU(DATA IN_V CLK IN_L) Setup time, DATA IN valid before CLK IN low - 0 (4) - 0 (4) ns t H(CLK IN_L DATA IN_V) Hold time, DATA OUT valid after CLK IN low 78 (5) (6) - ns t H(CLK IN_L SS_H) Hold time, CLK IN low to SS high 78 (5) (6) - ns t W(SS) Pulse duration, SS high 95 (7) (7) - Ns Note: (1) 10 (DSP) + 13 (TC7WH125FK = difference max between propagation time for SPEED/SS and propagation time for A1/CLK IN) (2) symmetry with transmission (3) 32H (DSP) with H=10ns (4) 12H (DSP)+ 13 (TC7WH125FK = idem note 1) rounded to 0 (5) 5+12H (DSP) + 13 (TC7WH125FK = idem note 1) with H=5ns (6) 5+12H (DSP) + 13 (TC7WH125FK = idem note 1) with H=10ns (7) t C(CLK IN) /2 =>to be confirmed EV10_Running_Modes 27/27