Flash Memory Control Register 1 (Flmcr1) - Hitachi H8/3672 Series Hardware Manual

7.2.1

Flash Memory Control Register 1 (FLMCR1)

FLMCR1 is a register that makes the flash memory change to program mode, program-verify
mode, erase mode, or erase-verify mode. For details on register setting, refer to section 7.4, Flash
Memory Programming/Erasing.
Bit Bit Name
7 —
6 SWE
5 ESU
4 PSU
3 EV
2 PV
1 E
0 P
Initial Value R/W
0 —
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
Description
Reserved
This bit is always read as 0 and cannot be modified.
Software Write Enable
When this bit is set to 1, flash memory
programming/erasing is enabled. When this bit is
cleared to 0, other FLMCR1 register bits and all
EBR1 bits cannot be set.
Erase Setup
When this bit is set to 1, the flash memory changes to
the erase setup state. When it is cleared to 0, the
erase setup state is cancelled. Set this bit to 1 before
setting the E bit to 1 in FLMCR1.
Program Setup
When this bit is set to 1, the flash memory changes to
the program setup state. When it is cleared to 0, the
program setup state is cancelled. Set this bit to 1
before setting the P bit in FLMCR1.
Erase-Verify
When this bit is set to 1, the flash memory changes to
erase-verify mode. When it is cleared to 0, erase-
verify mode is cancelled.
Program-Verify
When this bit is set to 1, the flash memory changes to
program-verify mode. When it is cleared to 0,
program-verify mode is cancelled.
Erase
When this bit is set to 1, and while the SWE=1 and
ESU=1 bits are 1, the flash memory changes to erase
mode. When it is cleared to 0, erase mode is
cancelled.
Program
When this bit is set to 1, and while the SWE=1 and
PSU=1 bits are 1, the flash memory changes to
program mode. When it is cleared to 0, program
mode is cancelled.
Rev. 1.0, 03/01, page 75 of 280