HD64F3028F25 Datasheet, PDF (610/925 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

Bit 6—Software Write Enable (SWE): Enables or disables flash memory programming and
erasing. (This bit should be set when setting bits 5 to 0, EBR1 bits 7 to 0, and EBR2 bits 3 to 0.)
Bit 6
SWE
Description
0
Programming/erasing disabled
1
Programming/erasing enabled
[Setting condition]
When FWE = 1
Note: Do not execute a SLEEP instruction while the SWE bit is set to 1.
(Initial value)
Bit 5—Erase Setup (ESU): Prepares for a transition to erase mode. Set this bit to 1 before setting
the E bit to 1 in FLMCR1 (do not set the SWE, PSU, EV, PV, E, or P bit at the same time).
Bit 5
ESU
0
1
Description
Erase setup cleared
Erase setup
[Setting condition]
When FWE = 1 and SWE = 1
(Initial value)
Bit 4—Program Setup (PSU): Prepares for a transition to program mode. Set this bit to 1 before
setting the P bit to 1 in FLMCR1 (do not set the SWE, ESU, EV, PV, E, or P bit at the same time).
Bit 4
PSU
0
1
Description
Program setup cleared
Program setup
[Setting condition]
When FWE = 1 and SWE = 1
(Initial value)
Bit 3—Erase-Verify Mode (EV): Selects erase-verify mode transition or clearing. (Do not set the
SWE, ESU, PSU, PV, E, or P bit at the same time.)
Bit 3
EV
0
1
Description
Erase-verify mode cleared
Transition to erase-verify mode
[Setting condition]
When FWE = 1 and SWE = 1
(Initial value)
Rev. 2.00, 09/03, page 578 of 890