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FLMCR—Flash Memory Control Register
Modes 1 to
Initial value
4, and 6
Read/Write
Modes 5
Initial value
Read/Write
and 7
Software write enable bit
Flash write enable bit
0
When a low level is input to the FWE pin (hardware protection state)
1
When a high level is input to the FWE pin
Note: This register is used only in the flash memory versions.
Reading the corresponding address in a mask ROM version will always return
1s, and writes to this address are disabled.
Fix the FWE pin low in mode 6.
598
7
6
Bit
FWE
SWE
ESU
0
0
R
R
1/0
0
R
R/W
R/W
Erase-verify mode
Program setup
0
Program setup cleared (Initial value)
1
Program setup
[Setting condition]
When FWE = 1 and SWE = 1
Erase setup
0
Erase setup cleared (Initial value)
1
Erase setup
[Setting condition]
When FWE = 1 and SWE = 1
0
Program/erase disabled (Initial value)
1
Program/erase enabled
[Setting condition]
When FWE = 1
5
4
3
PSU
EV
0
0
0
R
R
R
0
0
0
R/W
R/W
R/W
Erase mode
0
Erase mode cleared (Initial value)
1
Transition to erase mode
[Setting condition]
When FWE = 1, SWE = 1, and ESU = 1
Program-verify mode
0
Program-verify mode cleared (Initial value)
1
Transition to program-verify mode
[Setting condition]
When FWE = 1 and SWE = 1
0
Erase-verify mode cleared (Initial value)
1
Transition to erase-verify mode
[Setting condition]
When FWE = 1 and SWE = 1
H'40
2
1
0
PV
E
P
0
0
0
R
R
R
0
0
0
R/W
R/W
Program mode
0
Program mode cleared (Initial value)
1
Transition to program mode
[Setting condition]
When FWE = 1, SWE = 1, and PSU = 1
Flash memory
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