D12320VF25V Datasheet, PDF (1082/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Appendix B Internal I/O Registers
FKEY—Flash Key Code Register
H'FFC8
FLASH
(Valid only in the H8S/2319C F-ZTAT)
Bit
:
7
6
5
4
3
2
1
0
K7
K6
K5
K4
K3
K2
K1
K0
Initial value :
0
0
0
0
0
0
0
0
Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W
Key Code
H'A5 Writing to the SCO bit is enabled
(The SCO bit cannot be set by the value other than H'A5.)
H'5A Programming/erasing is enabled
(The value other than H'5A is in software protection state.)
H'00 Initial value
FMATS—Flash MAT Select Register
H'FFC9
FLASH
(Valid only in the H8S/2319C F-ZTAT)
Bit
:
Initial value :
Initial value :
Read/Write :
7
MS7
0
1
R/W
6
MS6
0
0
R/W
5
MS5
0
1
R/W
4
MS4
0
0
R/W
3
MS3
0
1
R/W
2
MS2
0
0
R/W
1
MS1
0
1
R/W
0
MS0
0
0
R/W
(When not in user boot mode)
(When in user boot mode)
MAT Select
H'AA
The user boot MAT is selected (in user-MAT selection state
when the value of these bits are other than H'AA)
Initial value when these bits are initiated in user boot mode
H'00 Initial value when these bits are initiated in a mode
except for user boot mode (in user-MAT selection state)
[Programmable condition] These bits are in the execution state in the on-chip RAM.
Rev.7.00 Feb. 14, 2007 page 1048 of 1108
REJ09B0089-0700