SH7055S Datasheet, PDF (790/1002 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

Bits 7 to 0
K7 to K0
H'A5
H'5A
H'00
Description
Writing to the SCO bit is enabled (The SCO bit cannot be set by a value other than
H'A5.)
Programming/erasing is enabled (A value other than H'A5 enables software
protection state.)
Initial value
(5) Flash MAT Select Register (FMATS)
FMATS specifies whether user MAT or user boot MAT is selected.
Bit :
Initial value :
Initial value :
R/W :
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 (When not in
user boot mode)
0 (When in
R/W ^{user boot mode)}
Bits 7 to 0—MAT Select (MS7 to MS0): These bits are in user-MAT selection state when a
value other than H'AA is written and in user-boot-MAT selection state when H'AA is written.
The MAT is switched by writing a value in FMATS.
When the MAT is switched, follow section 22.8.1, Switching between User MAT and User Boot
MAT. (The user boot MAT cannot be programmed in user program mode if user boot MAT is
selected by FMATS. The user boot MAT must be programmed in boot mode or in programmer
mode.)
Bits 7 to 0
MS7 to MS0 Description
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.2.0, 07/03, page 752 of 960