M16C65 Datasheet, PDF (746/829 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/60

Under development
M16C/65 Group
Preliminary Specification
This is a preliminary specification and is subject to change.
30. Flash Memory
30.8.3 Suspend Function (under review)
The suspend function suspends automatic programming and erasure. It can be used for an interrupt
operation because program ROM1, program ROM2, and data flash can be read while automatic
programming or erasure is suspended. Enable the interrupts used to enter suspend mode beforehand.
The program command, erase command, and lock bit program command are subjects for suspend.
Suspend operation is the same for the program command and lock bit program command, so both
commands are described together as program suspend.
Do not suspend again in suspend mode. Table 30.12 lists Operation after the Program, Erase, or Lock
Bit Program Command is Issued during Suspend.
Table 30.12 Operation after the Program, Erase, or Lock Bit Program Command is Issued during
Suspend
Suspend
Erase
suspend
Program
suspend
Command
Program command
Erase command
Lock bit program
command
Program command
Erase command
Lock bit program
command
Operation
Blocks erased or programmed
before the suspend mode is entered
Other blocks
Commands are not executed.
Program command is executed.
Command sequence error occurs. Program suspend does not start or
an error does not occur even
when the FMR31 bit is set to 1
(suspend request).
Commands are not executed. Command sequence error occurs.
Commands are not executed.
Lock bit program can be executed.
Command sequence error occurs.
Commands are not executed. Command sequence error occurs.
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
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