Renesas M16C/62P Series Hardware Manual page 286

M16C/62P Group (M16C/62P, M16C/62PT)
Table 22.2 Flash Memory Rewrite Modes Overview
Flash Memory
Rewrite Mode
Function The User ROM area is rewritten when
the CPU executes software commands.
EW0 mode:
Rewrite in areas other than flash
memory
EW1 mode:
Can be rewritten in the flash memory
Areas which User ROM area
can be
Rewritten
Operating Single-chip mode
Mode Memory expansion mode (EW0 mode)
Boot mode (EW0 mode)
ROM None
Programmer
NOTES:
1. The PM13 bit remains set to "1" while the FMR01 bit in the FMR0 register = 1 (CPU rewrite mode enabled). The
PM13 bit is reverted to its original value by clearing the FMR01 bit to "0" (CPU rewrite mode disabled).
However, if the PM13 bit is changed during CPU rewrite mode, its changed value is not reflected until after the
FMR01 bit is cleared to "0".
2. When in CPU rewrite mode, the PM10 and PM13 bits in the PM1 register are set to "1". The rewrite control
program can only be executed in the internal RAM or in an external area that is enabled for use when the PM13
bit = 1. When the PM13 bit = 0 and the flash memory is used in 4-Mbyte mode, the extended accessible area
(40000h to BFFFFh) cannot be used.
Rev.2.41 Jan 10, 2006
REJ09B0185-0241
http://www.xinpian.net
(1)
CPU rewrite Mode
(2)
Page 271 of 390
提供单片机解密、IC解密、芯片解密业务
Standard Serial I/O Mode
The user ROM area is
rewritten using a dedicated
serial programmer.
Standard serial I/O mode 1:
Clock synchronous serial I/O
Standard serial I/O mode 2:
UART
User ROM area
Boot mode
Serial programmer
22. Flash Memory Version
Parallel I/O Mode
The boot ROM area and
user ROM area is rewritten
using a dedicated parallel
programmer.
User ROM area
Boot ROM area
Parallel I/O mode
Parallel programmer
010-62245566 13810019655