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M16C/5L Group, M16C/56 Group
Do not set the FMR23 bit to 1 (low current consumption read mode enabled) when any of the following
occurs:
•
When the CM07 bit is 0 (main clock, PLL clock, or on-chip oscillator clock selected as CPU clock
source).
•
When the FMR22 bit is 0 (slow read mode disabled)
•
When the FMSTP bit is 1 (flash memory stopped)
•
During the wake up operation when the FMSTP bit is changed from 1 to 0 (tps)
Do not perform the operations below when the FMR23 bit is 1. Set the FMR23 to 0 before performing
them.
•
Change the CPU clock
•
Set to the FMSTP bit to 1 (flash memory stopped)
•
Enter the wait mode or stop mode
•
Execute the following commands:
Program, block erase, lock bit program, read lock bit status, and block blank check
R01UH0127EJ0110 Rev.1.10
Sep 01, 2011
9. Power Control
Page 121 of 803
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