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M16C/62P Group (M16C/62P, M16C/62PT)
22. Flash Memory Version
Rev.2.41
Jan 10, 2006
Page 278 of 390
REJ09B0185-0241
Figure 22.6
FMR1 Register
Flash Memory Control Register 1
Symbol
Address
After Reset
FMR1
01B5h
0X00XX0Xb
Bit Symbol
Bit Name
Function
RW
NOTES :
1.
Write to this bit w hen the NMI
____
pin is in the high state.
The FMR01 and FMR11 bits both are cleared to “0” by setting the FMR01 bit to “0”.
Reserved Bit
Set to “0”
RO
RW
Set to “0”
RO
0: EW0 mode
1: EW1 mode
EW1 Mode Select Bit
(1)
—
(b7)
—
(b0)
RO
The value in this bit w hen read is indeterminate
—
(b3-b2)
—
(b5-b4)
RW
Lock Bit Status Flag
0: Lock
1: Unlock
The value in this bit w hen read is indeterminate
To set this bit to “1,” w rite “0” and then “1” in succession w hen the FMR01 bit = 1. Make sure no interrupts or DMA
transfers w ill occur before w riting “1” after w riting “0”.
b3 b2 b1 b0
0
RW
b7 b6 b5 b4
0
0 0
FMR11
FMR16
Reserved Bit
Reserved Bit
Reserved Bit
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