R8C/1A Group, R8C/1B Group 18. Flash Memory
Rev.1.30 Dec 08, 2006 Page 273 of 315
REJ09B0252-0130
18.6 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 18.1 and 18.2 can be rewritten in parallel I/O mode.
18.6.1 ROM Code Protect Function
The ROM code protect function disables the reading and rewriting of the flash memory. (Refer to the 18.3
Functions to Prevent Rewriting of Flash Memory.)
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