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R8C/18 Group, R8C/19 Group
17.6
Parallel I/O Mode
Parallel I/O mode is used to input and output software commands, addresses, and data necessary to
control (read, program, and erase) the on-chip flash memory. Use a parallel programmer which supports
this MCU. Contact the manufacturer of the parallel programmer for more information, and refer to the
user's manual of the parallel programmer for details on how to use it.
ROM areas shown in Figures 17.1 and 17.2 can be rewritten in parallel I/O mode.
17.6.1
ROM Code Protect Function
The ROM code protect function disables the reading and rewriting of the flash memory. (Refer to the
17.3 Functions to Prevent Rewriting of Flash Memory.)
Rev.1.30
Apr 14, 2006
REJ09B0222-0130
Page 199 of 233
17. Flash Memory Version
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