h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 420

• Manufacturer Part Number: h8s-2172
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
• Manufacturer: Renesas Electronics Corporation.

• Flash MAT Select Register (FMATS)
FMATS specifies whether user MAT or user boot MAT is selected.
Note:
Rev. 2.00, 03/04, page 388 of 534
Bit
7
6
5
4
3
2
1
0
*
Bit
Name
MS7
MS6
MS5
MS4
MS3
MS2
MS1
MS0
Set to 1 when in user boot mode, otherwise set to 0.
Initial
Value
0/1*
0
0/1*
0
0/1*
0
0/1*
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
MAT Select
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 14.6,
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.)
H'AA: The user boot MAT is selected (in user-MAT
H'00: Initial value when these bits are initiated in a mode
[Programmable condition]
These bits are in the execution state in the on-chip
RAM.
selection state when the value of these bits are
other than H'AA)
Initial value when these bits are initiated in user
boot mode.
except for user boot mode (in user-MAT selection
state)