M16C62N Datasheet, PDF (190/213 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Mitsubishi microcomputers
M16C / 62N Group (80-pin)
Appendix Standard Serial I/O Mode 1 (Flash Memory Version) ^{SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER}
Read Check Data
This command reads the check data that confirms that the write data, which was sent with the page
program command, was successfully received.
(1) Transfer the "FD16" command code with the 1st byte.
(2) The check data (low) is received with the 2nd byte and the check data (high) with the 3rd.
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.
CLK1
RxD1
(M16C reception data)
FD16
TxD1
(M16C transmit data)
Check data (low)
RTS1(BUSY)
Check data (high)
Figure 1.32.17. Timing for the read check data
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