3069RF-ZTAT Datasheet, PDF (875/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

FKEY—Flash Key Code Register
H'EE0B4 Flash Memory
Bit
7
6
5
4
3
K7
K6
K5
K4
K3
Initial value
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
2
1
0
K2
K1
K0
0
0
0
R/W
R/W
R/W
Key code
H'A5 Write to SC0 bit is enabled (SC0 bit can be set only when FKEY is H'A5)
H'5A Programming/erase is enabled (software-protection state when FKEY is not H'5A)
H'00 Initial value
FMATS—Flash Mat Select Register
H'EE0B5 Flash Memory
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 ^{(Mode other than user boot mode)}
0 (User boot mode)
R/W
Mat select
User boot mode is selected (user mat selection when FMATS is not H'AA).
H'AA
Initial value when started up in user boot mode.
H'00 Initial value when not started up in user boot mode (user mat selection)
[Programmable condition] Program being executed is in on-chip RAM
Rev. 5.0, 09/04, page 853 of 978