HD6473847RHV Datasheet, PDF (179/546 Pages) Renesas Technology Corp – Renesas 8-Bit Single-Chip Microcomputer H8 Family / H8/300L Super Low Power Series

Section 6 ROM
6.6.1 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 6.8, Flash
Memory Programming/Erasing.
Initial
Bit
Bit Name Value R/W Description
7
—
0
—
Reserved
This bit is always read as 0.
6
SWE
0
R/W Software Write Enable
When this bit is set to 1, flash memory
programming/erasing is enabled. When this bit is cleared
to 0, flash memory programming/erasing is invalid. Other
FLMCR1 bits and all EBR bits cannot be set.
5
ESU
0
R/W 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.
4
PSU
0
R/W 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.
3
EV
0
R/W 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.
2
PV
0
R/W 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.
1
E
0
R/W 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.
0
P
0
R/W 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.
Note: Bits SWE, PSU, EV, PV, E, and P should not be set at the same time.
Rev. 7.00 Mar. 08, 2010 Page 147 of 510
REJ09B0024-0700