D12320VF25IV Datasheet, PDF (892/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 19 ROM
Bit 6
SWE1
0
1
Description
Writes disabled
Writes enabled
[Setting condition]
When FWE = 1
(Initial value)
Bit 5—Erase Setup Bit 1 (ESU1): Prepares for a transition to erase mode for addresses H'000000
to H'03FFFF. Do not set the SWE1, PSU1, EV1, PV1, E1, or P1 bit at the same time.
Bit 5
ESU1
0
1
Description
Erase setup cleared
Erase setup
[Setting condition]
When FWE = 1, SWE1 = 1
(Initial value)
Bit 4—Program Setup Bit 1 (PSU1): Prepares for a transition to program mode for addresses
H'000000 to H'03FFFF. Do not set the SWE1, ESU1, EV1, PV1, E1, or P1 bit at the same time.
Bit 4
PSU1
0
1
Description
Program setup cleared
Program setup
[Setting condition]
When FWE = 1, SWE1 = 1
(Initial value)
Bit 3—Erase-Verify 1 (EV1): Selects erase-verify mode transition or clearing for addresses
H'000000 to H'03FFFF. Do not set the SWE1, ESU1, PSU1, PV1, E1, or P1 bit at the same time.
Bit 3
EV1
0
1
Description
Erase-verify mode cleared
Transition to erase-verify mode
[Setting condition]
When FWE = 1, SWE1 = 1
(Initial value)
Rev.6.00 Sep. 27, 2007 Page 860 of 1268
REJ09B0220-0600