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Rev.1.10 Jul 01, 2005 page 259 of 318
REJ09B0124-0110
M16C/6N Group (M16C/6NK, M16C/6NM) 20. Flash Memory Version
Under development
This document is under development and its contents are subject to change.
20.4 Standard Serial I/O Mode
In standard serial I/O mode, the serial programmer supporting the M16C/6N Group (M16C/6NK, M16C/6NM)
can be used to rewrite the flash memory user ROM area in the microcomputer mounted on a board. For
more information about the serial programmer, contact your serial programmer manufacturer. Refer to the
user's manual included with your serial programmer for instructions.
Table 20.7 lists pin functions for standard serial I/O mode. Figures 20.13 and 20.14 show pin connections
for standard serial I/O mode.
20.4.1 ID Code Check Function
The ID code check function determines whether the ID codes sent from the serial programmer matches
those written in the flash memory. (Refer to 20.2 Functions to Prevent Flash Memory from Rewriting.)