EDOSK2674 Renesas Electronics America, EDOSK2674 Datasheet - Page 23

• Manufacturer Part Number: EDOSK2674
• Description: DEV EVALUATION KIT H8S/2674
• Manufacturer: Renesas Electronics America
• Series: H8®r
• Type: MCUr

Specifications of EDOSK2674

• Contents: EDOSK (Evaluation Development Operating System Kit) Board
• For Use With/related Products: H8S/2674R
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

7.2. H8/2674R R
7.2.1. B
Bus Width Control Register:
ABWCR (H’FFFEC0) = H’81 (BOOT) or H’80 (NORMAL)
Bit No
Bit Name
Initial Value
Note: In BOOT mode (MCU mode 2), ABWCR is initialized to 1. In NORMAL mode (MCU mode 1), ABWCR is
initialized to 0.
In BOOT mode area 7 and 0 are mapped as 8-bit areas.
In NORMAL mode only area 7 is mapped as 8-bit area.
The SDRAM (ABW2) is always mapped as 16-bit area.
Access State Control Registers:
ASTCR (H’FFFEC1) = H’FF
Bit No
Bit Name
Initial Value
All areas are designated as 3-state access space.
Wait Control Registers:
WTCRAH (H’FFFEC2) = H’27
Bit No
Bit Name
Initial Value
Area 7 has 2 program wait states inserted.
Area 6 has 7 program wait states inserted.
WTCRAL (H’FFFEC3) = H’77
Bit No
Bit Name
Initial Value
Area 5 has 7 program wait states inserted.
Area 4 has 7 program wait states inserted.
US
EGISTER
7
ABW7
1 or 0
7
AST7
1
15
Reserved
0
7
Reserved
0
C
ONTROLLER
C
ONFIGURATION
W52
6
ABW6
1/0
6
AST6
1
14
W72
0
6
1
(BSC)
5
ABW5
1/0
5
AST5
1
13
W71
1
5
W51
1
4
ABW4
1/0
4
AST4
1
12
W70
0
4
W50
1
3
ABW3
1/0
3
AST3
1
11
Reserved
0
3
Reserved
0
2
ABW2
0
2
AST2
1
10
W62
1
2
W42
1
W41
1
ABW1
0
1
AST1
1
9
W61
1
1
1
0
ABW0
1
0
AST0
1
8
W60
1
0
W40
1
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