HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 892

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 19 ROM
19.23.2 Flash Memory Control Register 2 (FLMCR2)
FLMCR2 is an 8-bit register used for flash memory operating mode control. Program-verify mode
or erase-verify mode for addresses H'040000 to H'07FFFF is entered by setting SWE2 to 1 when
FWE = 1, then setting the EV2 or PV2 bit. Program mode for addresses H'040000 to H'07FFFF is
entered by setting SWE2 to 1 when FWE = 1, then setting the PSU2 bit, and finally setting the P2
bit. Erase mode for addresses H'040000 to H'07FFFF is entered by setting SWE2 to 1 when FWE
= 1, then setting the ESU2 bit, and finally setting the E2 bit. FLMCR2 is initialized to H'00 by a
reset, and in hardware standby mode and software standby mode. When on-chip flash memory is
disabled, a read will return H'00, and writes are invalid.
Writes to the SWE2 bit in FLMCR2 are valid only when FWE = 1;
writes to the ESU2, PSU2, EV2, and PV2 bits only when FWE = 1 and SWE2 = 1;
writes to the E2 bit only when FWE = 1, SWE2 = 1, and ESU2 = 1;
and writes to the P2 bit only when FWE = 1, SWE2 = 1, and PSU2 = 1.
Bit 7—Flash Memory Error (FLER): Indicates that an error has occurred during an operation on
flash memory (programming or erasing). When FLER is set to 1, flash memory goes to the error-
protection state.
Bit 7
FLER
0
1
Rev.6.00 Sep. 27, 2007 Page 862 of 1268
REJ09B0220-0600
Bit
Initial value :
R/W
Description
Flash memory is operating normally
Flash memory program/erase protection (error protection) is disabled
[Clearing condition]
Reset or hardware standby mode
An error has occurred during flash memory programming/erasing
Flash memory program/erase protection (error protection) is enabled
[Setting condition]
See section 19.26.3, Error Protection
:
:
FLER
R
7
0
SWE2
R/W
6
0
ESU2
R/W
5
0
PSU2
R/W
4
0
R/W
EV2
3
0
R/W
PV2
2
0
R/W
E2
1
0
(Initial value)
R/W
P2
0
0