R8C1A Datasheet, PDF (262/339 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER R8C FAMILY / R8C/1x SERIES

R8C/1A Group, R8C/1B Group
18. Flash Memory
Table 18.2 Flash Memory Rewrite Modes
Flash Memory
Rewrite Mode
Function
Areas which can
be rewritten
Operating mode
ROM
programmer
CPU Rewrite Mode
User ROM area is rewritten by
executing software commands
from the CPU.
EW0 mode: Rewritable in any
area other than
flash memory
EW1 mode: Rewritable in flash
memory
User ROM area
Single chip mode
None
Standard Serial I/O Mode
User ROM area is rewritten
by a dedicated serial
programmer.
User ROM area
Boot mode
Serial programmer
Parallel I/O Mode
User ROM area is
rewritten by a
dedicated parallel
programmer.
User ROM area
Parallel I/O mode
Parallel programmer
Rev.1.30 Dec 08, 2006 Page 246 of 315
REJ09B0252-0130