M30622SAFP MITSUBISHI [Mitsubishi Electric Semiconductor], M30622SAFP Datasheet - Page 268

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M30622SAFP

Manufacturer Part Number
M30622SAFP
Description
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Manufacturer
MITSUBISHI [Mitsubishi Electric Semiconductor]
Datasheet

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Appendix Standard Serial I/O Mode 2 (Flash Memory Version)
268
Figure 1.29.38. Timing for the read check data
Figure 1.29.39. Timing of baud rate 9600
Read Check Data
Baud Rate 9600
This command reads the check data that confirms that the write data, which was sent with the page
program command, was successfully received.
To use this read check data command, first execute the command and then initialize the check data.
Next, execute the page program command the required number of times. After that, when the read
check command is executed again, the check data for all of the read data that was sent with the page
program command during this time is read. The check data is the result of CRC operation of write
data.
This command changes baud rate to 9,600 bps. Execute it as follows.
(1) Transfer the "FD
(2) The check data (low) is received with the 2nd byte and the check data (high) with the 3rd.
(1) Transfer the "B0
(2) After the "B0
(M16C reception data)
(M16C transmit data)
(M16C reception data)
(M16C transmit data)
16
RxD1
" check code is output with the 2nd byte, change the baud rate to 9,600 bps.
TxD1
16
16
" command code with the 1st byte.
" command code with the 1st byte.
RxD1
TxD1
B0
16
Check data (low)
B0
FD
16
16
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Check data (high)
M16C / 62A Group
Mitsubishi microcomputers

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