M16C30P_07 Datasheet, PDF (220/317 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/30 SERIES

M16C/30P Group
19. Flash Memory Version
Flash Memory Control Register 1
b7 b6 b5 b4 b3 b2 b1 b0
0 00
0 _Symbol
FMR1
Address
01B5h
After Reset
0X00XX0Xb
Bit Symbol
Bit Name
Function
RW
—
Reserved Bit
(b0)
The value in this bit w hen read is indeterminate
RO
EW1 Mode Select Bit ⁽¹⁾
0: EW0 mode
FMR11
1: EW1 mode
RW
—
Reserved Bit
(b3-b2)
The value in this bit w hen read is indeterminate
RO
—
Reserved Bit
Set to “0”
(b5-b4)
RW
Lock Bit Status Flag
0: Lock
FMR16
1: Unlock
RO
—
Reserved Bit
(b7)
Set to “0”
RW
NOTES :
1. 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”.
____
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”.
Figure 19.5 FMR1 Register
Rev.1.22 Mar 29, 2007 Page 204 of 291
REJ09B0179-0122