M16C6KA_15 Datasheet, PDF (239/270 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER Description

M16C/6KA Group
CPU Reprogram Mode
Table BB-1 The list of software command (CPU reprogram mode)
Item
Operation mode
The area, which the reprogram
control program can be
allocated
The area, which the reprogram
control program can be
executed
Reprogramable area
EW0 mode
•Single chip mode
•Boot mode
•User ROM area
•Boot ROM area
Should be transferred to RAM
and then executed
•User ROM area
The limitation of software No
command
The mode after program erase
CPU status during auto
programming auto erasing
Read status register mode
Operate
The check of the status of flash *Check FMR00, FMR06, FMR07
memory
bits of FMR0 register by S/W
*Execute the read status register
command, and then check SR7,
SR5 and SR4 bit of status register
_______
Note1:Do not use interrupts (exclude NMI and WDT).
EW1 mode
•Single chip mode
•User ROM area
•Can be executed in User ROM area
•User ROM area
However, the block, which the
reprogram control program is
allocated, is excluded.
•Program block area command
Inhibited to the block, which reprogram
control program is allocated
•Read status register command
Inhibited
Read array mode
Hold status (the status of I/O ports is
hold the same before executing the
command) (Note 1)
*Check FMR00, FMR06, FMR07 bits
of FMR0 register by S/W
Rev.1.00 Jul 16, 2004 page 237 of 266
REJ03B0100-0100Z