Renesas H8S/2319 series Hardware Manual page 709

Bits 7 to 0
K7 to K0 Description
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
(5) Flash MAT Select Register (FMATS)
FMATS specifies whether user MAT or user boot MAT is selected.
Bit : 7
MS7
Initial value : 0
Initial value : 1
R/W : R/W
Bits 7 to 0—MAT Select (MS7 to MS0): These bits are in user-MAT selection state when the
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 the value in FMATS.
When the MAT is switched, follow section 17.27, Switching between User MAT and User Boot
MAT. (The user boot MAT cannot be programmed in user programming mode if user boot MAT
is selected by FMATS. The user boot MAT must be programmed in boot mode or in PROM
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.
6 5 4
MS6 MS5 MS4
0 0 0
0 1 0
R/W R/W R/W
3 2 1
MS3 MS2 MS1
0 0 0
1 0 1
R/W R/W R/W
Rev. 5.00, 12/03, page 679 of 1088
0
MS0
0
(When not in user boot mode)
0
(When in user boot mode)
R/W