Technical Reference for Micro Controller: N01B-4824-B406 for Ergo Trac Pointing Device: FID /N01B-4828-B100

Transcription

1 Technical Reference for Micro Controller: N01B-4824-B406 for Ergo Trac Pointing Device: FID /N01B-4828-B APPLICATION: This technical reference is prepared and applied for the usage of the combination of following products. Pointing Device Part Number: Micro Controller (MCU) Part Number: FID / N01B-4828-B100. FID / N01B4824-B406 Note: This MCU is the one, which install the Fujitsu s unique custom firmware inside MC68HC05P6, Motorola, for the control of above pointing device. The basic features of the MCU shall be referred and followed to the basic features of MC68HC05P6, Motorola, advised by Motorola. 2. CONFIGURATION: 2.1 CONFIGURATION OF POINTING DEVICE AND MCU: Configuration of the Pointing device and this MCU is shown as below. [Pointing Device] [MCU] MCU AV Vcc(+5V) 2.2 POINTING DEVICE: Signal Name X Data Y Data AV SG Signal Direction Pointing Device MCU Descriptions Analog Data of X Direction Analog Data of Y Direction Power Supply (+5V) Signal Ground

2 2.3 MCU CONTROLLER: Signal Name Clock Data Vcc SG Signal Direction MCU HOST (Data Wait) (Clock) (Request to send) (Data) Descriptions Prohibition signal of data output from MCU Synchronous clock signal of data transmission Ready signal of receiving data from Host Data transmission signal Power supply 5V DC Signal ground 3. INTERFACE: This MCU to work based on the recommended circuit. 3.1 INTERFACEN SIGNAL: PIN # SIGNAL NAME I/O DESCRIPTIONS 4 PA3 (Clock) I Data transmission prohibit signal (Data Wait) 31 PA7(Clock) O Data communication synchronize Clock (Clock) 30 *IRQ (Data) I Command receipt ready signal (Request to send) 1 PA6 (Data) O Communication data (Data) 8 PB5 I Out-put count characteristics selection terminal 3, 2, PA4, PA5 10, 11, PB6, PA7 I Fixed L-level 18, 17, PC3, PC4 22, 24 PD5, PD7 13 Vref I A/D converter basic voltage (Connection to pointing device power supply) 14 ANO I X-axis sensor detection signal (A/D terminal) 15 AN1 I Y-axis sensor detection signal (A/D terminal) 21 PCO I Switch left (SW1) 20 PC1 I Switch right (SW2) 19 PC2 I Fixed H-level 27 OSC1 I 3.00 MHz clock input terminal 26 OSC2 O 7 PAO O Pointing device power supply control terminal 29 *RESET - Reset terminal 12 Vss - Ground 28 Vcc - Power supply 5 Vdc 23, 6, 5 TCMP, PA1, PA2 O 9, 16, - Open terminal NC 25, 32 * Pin assignment to be QFP package basis

3 3.2 DESCRIPTION OF INTERFACE SIGNAL: CLOCK: - Data communication synchronize Clock - The clock is generated by this MCU - Even when the MCU is ready to send data, it does not send the data if the clock line is low (transmission prohibited). The MCU also checks the clock line during data transmission, and it stops transmission even on process if it detects a low level DATA: - Transmission data (Data, Command code), Receiving data (Command Code) - This is also the request-to-send signal from the Host. The MCU become ready to receive data, when it detects low level on the data line. 3.3 DATA OUT-PUT: - When the MCU is ready to send data, it checks the status on both the clock line and the data line to confirm the Host status of Data wait or request to send. - When both the clock line and the data line levels are high, the MCU takes it as acceptance and then accordingly it start the transmission. - The MCU watches the status of the clock line even during the data transmission period. Once it detects the Low level (transmission prohibited), it interrupts the data transmission at once before completion of all the data. 3.4 DATA IN-PUT: - The MCU become ready to receive data when it detects low level on the data line. At this time, the host has to make the clock line Low-level for more than 60us, and needs to interrupt this operation when the MCU controller starts sending the data. - This MCU starts receiving the data (counting 11 bits) when it detects the high level on the clock line. After receiving 10 th bit, this MCU makes data line low, and then receive the another 1 bit (Stop bit). This 11 th bit Low level data advise the Host of the receiving the data by MCU. CLOCK DATA INTERFACE CONTROL H H Permit MCU to send data L H Prohibit MCU to send data L L MCU be ready for data receipt H L MCU start receiving data Note: Host side to control the clock line and data line, during the interface control period

4 4. DATA TRANSMISSION METHOD AND STRUCTURE: Transmission Method Serial (Synchronous) Transmission Rate 12,500 bps (Typ.) Start Bit 1 Stop Bit 1 Data length 8 bit Parity Odd parity <Data Out-put> <Data In-put> ( Host data send preparation interval ) ( Data sampling interval )

5 5. FUNCTIONAL SPECIFICATION: 5.1 DATA FORMAT: X Sign Y Sign X Over Flow Y Over Flow 1st bite (Status) Left SW Right SW Negative: 1 2nd bite (X data) ON: 1 Over Flow: 1 3rd bite (Y data) X and Y data are the cursor movement data to the speed in accordance to the speed table described later, and they are indicated by two complement forms (Maximum value in positive direction is FF, and maximum value in negative direction is 00.) In case of Over Flow, the maximum number is set. 5.2 POINTING DATA TRANSIMISSION MODE: POLLING MODE: In response to the polling from the Host (Pointing Device Data Request Command), the MPU sends the data. When the polling is received, the MPU clears the count and start counting newly. Host MPU STREAM MODE: When the MPU detects the status change, such as pointing, switching etc., the MPU sends the data periodically. Each time the MPU sends the data, it clear the count and start counting newly. MPU T: Data Transmission interval (10-100ms, Initial: 10ms)

6 5.3 POWER ON INITIALIZE: When the power is turned on, MCU initializes following default setting. - Data transmission mode: Stream mode - MCU Status: Disable (Stream Data prohibited to send) - Speed mode: Constant speed mode - Resolution: Code 02 - Data Transmission Interval: 10 ms (Code to be set 64 ) After setting the default, the MCU sends the end code ( AA + 00 ). 6. COMMAND: 6.1 COMMAND FROM HOST: Following commands are the ones, which the MCU receives from the Host, and the MCU responds its ACK (acknowledgement) to the Host within 20 ms after receipt of the command. COMMAND RESET RESEND OPERATION MODE INITIALIZE DISABLE ENABLE *DATA TRANSMISSION INTERVAL SET ID DATA REQUEST POLLING MODE SET ECHO SET ECHO RESET POLLING (POINTING DATA REQUEST) STREAM MODE SET OPERATION MODE DATA REQUEST *RESOLUTION SET ACCELATION MODE SET CONSTANT SPEED MODE SET DATA (Hex) FF FE F6 F5 F4 F3 F2 F0 EE EC EB EA E9 E8 E7 E6 Note: 2 bite commands are marked as * RESET: ( FF ) The MCU sends the ACK response, and thereafter, the MPU operate similar to the POWER ON INITILIZE.

7 6.1.2 RESEND: ( FE ) The MCU resends the last data, which was sent just before receiving the RESEND command. Following data is treated in a set of data. - Out-put code at initialization: AA Pointing data: Status + X-data + Y-data - Operation mode data: Mode flag + Resolution + Data transmission interval Note: If the last sent data is the pointing data while stream mode, the MCU sends the modified data in response to the RESET command. Because the buffer of the pointing data is periodically modified OPERATION MODE INITIALIZE: ( F6 ) The MCU initializes the operation mode, and then sends the ACK. The resolution, data transmission interval, data transmission mode, and speed mode are set, same as the INITIALIZATION DISABLE: ( F5 ) The MCU makes the DATA TRANSMISSION MODE to be DISABLE, and sends the ACK. After receiving this command, the MPU does not send any pointing data by each transmission interval even in Stream mode, although all the other commands are effective ENABLE: ( F4 ) The MCU makes the DATA TRANSMISSION MODE to be ENABLE, and sends the ACK. After receiving this command, the Stream mode become effective, and the MCU sends the pointing data in setting transmission interval DARA TRANSMISSION INTERVAL SET: ( F3 + Parameter) This command consists of 2 bytes for command and the parameter. The MCU sends the ACK in response to the 1 st byte, and waits for the 2 nd byte, and sends the ACK in response to the parameter. PARAMETER (Hex) DATA TRANSMISSION INTERVAL (ms) OA C C ID DATA REQUEST: ( F2 ) The MCU sends the ACK in response to this command, and then sends the ID data (1 byte). ID Data: POLLING MODE SET: ( F0 ) The MCU change the DATA TRANSMISSION MODE to POLLING MODE, and sends the ACK.

8 6.1.9 ECHO SET: ( EE ) The MCU sets the ECHO, and sends the ACK. Thereafter whenever receiving the data from the Host, MCU send the same data (received from the Host) back to the Host. However, as exceptions, if the ECHO RESET command or RESET command are received, each command operation is made first with priority ECHO REST: ( EC ) The MCU reset the ECHO if the ECHO was set, and then sends the ACK POLLING (POINTING DATA REQUEST): ( EB ) The MCU sends the ACK in response to this command, and then, send the pointing data (3 bytes). As result, the MCU can make the count clear, and then starts counting newly STREAM MODE SET: ( EA ) The MCU change the DATA TRANSMISSION Mode to the STREAM Mode, and sends the ACK OPERATION MODE DATA REQUEST: ( E9 ) The MCU sends the ACK, and then sends the present OPERATION MODE data (3 byte). [OPERATION MODE DATA] - 1st bite (Mode Flag) - 2nd bite Left SW Right SW Acceleration Mode: 1 Data Transmission mode Data Transmission mode ON: 1 Disable: 0 Enable: 1 Stream Mode: 0 Polling Mode: 1 (Resolution) (Same parameter for resolution set command) - 3rd bite (Data Transmission Interval) (Same parameter for data transmission interval command) RESOLUTION SET: ( E8 + parameter) This command consists of 2 bytes for command and parameter. The MCU send the ACK in response to the command, and waits for the parameter, and then sends the ACK in response to the coming parameter ( ). Note that the MCU send the pointing data to the Host, regardless of the differences in parameter setting.

9 ACCELATION MODE: ( E7 ) The MCU sets the Acceleration mode for the mode flag, and send the ACK. Note that the pointing data from the MCU to the Host is same as the one for the constant speed mode CONSTANT SPEED MODE SET: ( E6 ) The MCU sets the constant speed mode, and then sends the ACK. 6.2 COMMAND TO HOST: Here are commands to the Host. COMMAND DATA (Hex) RESEND FE ERROR CODE FC ERROR CODE (at ECHO mode) 7F ACKNOWLEDGE (ACK) FA TEST END DATA AA or FC + 00 ID DATA 00 OPERATION MODE DATA Mode Flag + Resolution + Data Transmission Interval RESEND: ( FE ) The MCU sends RESEND command if the MCU receives the invalid input or wrong parity input ERROR CODE: ( FC ) The MCU sends the error code, if it receive the invalid input or wrong parity input again in response to the MCU s RESEND command to the HOST ERROR CODE: (At ECHO mode: 7F ) The MCU sends the error code, if receive the wrong parity input at ECHO mode ACKNOWLEDGEMENT [ACK]: ( FA ) The MCU sends the Acknowledgement response to all the valid inputs, except RESET command, while it is not in ECHO mode INITIALIZE END CODE: ( AA + 00 ) The MCU sends the END code after setting the default in the initialization ID DATA: ( 00 ) The MCU sends the ID DATA, in response to the ID DATA REQUEST command OPERATION MODE DATA: The MCU sends the OPERATION MODE data, in response to the OPERATION MODE DATA REQUEST command.

10 6.3 COUNT CLEAR AT COMPLETION OF COMMAND EXECUTION: The MCU makes the counts clear except following commands, after the normal completion of its command execution. [Commands whose counts are not made clear] - RESEND command - ECHO RESET command during the ECHO reset processing - OPERATION MODE INITIALIZE command 7. POINTING VALUE CALCULATION DATA: The MCU outputs the cursor speed count decided in the section 6.2 by the Dome s tilting angle calculated by the Center Value (decided in section 6.1) and Both X- and Y-axis line s voltage vales. 7.1 CENTER VALUE: The MCU decide and set the Center Voltage Value after the confirmation for the X- and Y-axis line s output voltages to become stable for about 0.5 second, when the MCU is started to supply the power CENTER VOLTAGE SETTING RANGE: V CENTER RESETTING CONDITION: 1. When the output voltage becomes stable for about 3 seconds during the first about 30 seconds after power started to apply, the MCU decides and sets the Center Voltage Value again. 2. After above 30 seconds, the MCU decides and sets the Center Voltage Value again when the output voltage become stable for about 15 seconds.

11 7.2 OUT-PUT COUNT CHARACTERISTICS: The MCU outputs the pointing data in accordance with the cursor speed count, relating to the Dome s tilting angle shown in following chart. The selection of the output characteristics is made subject to Out-put count characteristics selection terminal (PB5) level. SELECT TERMINAL TERMINAL LEVEL SELECTED CURVE PB5 L (A) H (B) Cursor Speed (count / sec) Dome Tilting Angle ( degree ) * Note: Cursor speed is the value in proportion to the square root ( X 2 + Y 2 ) of both X- and Y- output voltage values. Above chart is the design value, it is not a guaranteed value. 7.3 TREMOR MODE: There is a tremor mode in the area where the Dome tilting angle is smaller than degree. TREMOR MODE effective time: 3 seconds ( Time to be in the tilting range smaller than 2.75 degree, from outside tilting range tilting 2.75 degree.)

12 8. PACKAGE: Unit: mm Specification

13 9. RECOMMENDED CIRCUIT:

14 10. POINTING DEVICE: 10.1 MECHANICAL DIMENSIONS: See as below.

15 10.2: PIN ASSIGNMENT: See as below. PIN # SIGNAL 1 AV: Power Supply (+5Vdc) 2 X Data 3 Y Data 4 SG: Signal Ground 10.3 OPERATING ANGLE AND CO-ORDINATE: See as below CONNECTOR: Following CN is used on the PCB. SFW 4R-1STE1 (Burndy) or Equivalent. 11. ENVIRONMENTS: ITEM Ambient Temperature Humidity Operation Storage SPECIFICATIONS 0 to + 40 degree C -15 to + 60 degree C 90% RH max at + 40 degree C, Inversely proportional change to 50% RH at + 60 degree C 2005 All rights reserved. All trademarks or registered trademarks are the property off their respective owners. Fujitsu Components America does not warrant that the content of datasheet is error free. In a continuing effort to improve our products Fujitsu Components America, Inc. reserves the right to change specifications/datasheets without prior notice. Rev. 12/