M16C62 Datasheet, PDF (221/231 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Appendix Standard Serial I/O Mode
Mitsubishi microcomputers
M16C / 62 Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Version Information Output Command
This command outputs the version information of the control program stored in the boot area. Execute
the version information output command as explained here following.
(1) Send the “FB16” command code in the 1st byte of the transmission.
(2) The version information will be output from the 2nd byte onward. This data is composed of 8
ASCII code characters.
CLK1
RxD1
(M16C reception data)
FB16
TxD1
(M16C transmit data)
'V'
'E'
'R'
'X'
RTS1(BUSY)
Figure 1.25.13. Timing for version information output
Boot Area Output Command
This command outputs the control program stored in the boot area in one page blocks (256 bytes).
Execute the boot area output command as explained here following.
(1) Send the “FC16” command code in the 1st byte of the transmission.
(2) Send addresses A8 to A15 and A16 to A23 in the 2nd and 3rd bytes of the transmission respec-
tively.
(3) From the 4th byte onward, data (D0–D7) for the page (256 bytes) specified with addresses A8 to
A23 will be output sequentially from the smallest address first, in sync with the rise of the clock.
CLK1
RxD1
(M16C reception data)
TxD1
(M16C transmit data)
RTS1(BUSY)
FC16
A8 to A16 to
A15
A23
data0
data255
Figure 1.25.14. Timing for boot area output
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