R8C datasheet(167/199 Pages) RENESAS

tên linh kiện	R8C

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R8C/10 Group

17.5 Standard Serial I/O Mode

Rev.1.20 Jan 27, 2006

page 157 of 180

REJ09B0019-0120

17.5 Standard Serial I/O Mode

In standard serial I/O mode, the user ROM area can be rewritten while the microcomputer is mounted on-

board by using a serial programmer suitable for this microcomputer. Standard serial I/O mode has stan-

dard serial I/O mode 1 of the clock synchronous serial and standard serial I/O mode 2 of the clock

asynchronous serial. Refer to "Appendix 2 Connecting Examples for Serial Writer and On-chip Debug-

ging Emulator". For more information about serial programmers, contact the manufacturer of your serial

programmer. For details on how to use, refer to the user’s manual included with your serial programmer.

Table 17.7 lists pin functions (flash memory standard serial input/output mode). Figures 17.13 to 17.15

show pin connections for standard serial I/O mode.

17.5.1 ID Code Check Function

This function determines whether the ID codes sent from the serial programmer and those written in

the flash memory match (refer to Section 17.3, “Functions to Prevent Flash Memory from Rewriting”).

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