M16C30P_07 Datasheet, PDF (248/317 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/30 SERIES

M16C/30P Group
20. One Time Flash Version
20.3 Standard Serial I/O Mode
In standard serial I/O mode, the serial programmer supporting the M16C/30P Group can be used to write (the one
time 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 20.4 lists Pin Functions (One Time Flash Memory Standard Serial I/O Mode). Figure 20.4 show Pin
Connections for Serial I/O Mode.
20.3.1 ID Code Check Function
The ID code check function determines whether the ID codes sent from the serial programmer matches those
written in the one time flash memory. (Refer to 20.2 Functions to Prevent One Time Flash Version from
Being Read.)
Rev.1.22 Mar 29, 2007 Page 232 of 291
REJ09B0179-0122