HD6412350 Hitachi, HD6412350 Datasheet - Page 841

• Manufacturer Part Number: HD6412350
• Description: (HD6412350 / HD6432351) 16-BIT MICROCONTROLLER
• Manufacturer: Hitachi

ABWCR—Bus Width Control Register
ASTCR—Access State Control Register
Bit
Modes 1, 2, 3, 5, 7
Initial value
R/W
Mode 4
Initial value
Read/Write
Bit
Initial value
Read/Write
:
:
:
:
:
:
:
:
ABW7
AST7
R/W
R/W
R/W
7
1
7
1
0
Area 7 to 0 Access State Control
ABW6
AST6
R/W
0
1
R/W
R/W
6
1
6
1
0
Area n is designated for 2-state access
Wait state insertion in area n external space is disabled
Area n is designated for 3-state access
Wait state insertion in area n external space is enabled
ABW5
AST5
R/W
R/W
R/W
5
1
5
1
0
ABW4
AST4
Area 7 to 0 Bus Width Control
R/W
R/W
R/W
4
1
0
1
4
1
0
H'FED0
H'FED1
Area n is designated for 16-bit access
Area n is designated for 8-bit access
ABW3
AST3
R/W
R/W
R/W
3
1
3
1
0
ABW2
AST2
R/W
R/W
R/W
2
1
2
1
0
ABW1
AST1
R/W
R/W
R/W
1
1
1
1
0
Bus Controller
Bus Controller
(n = 7 to 0)
(n = 7 to 0)
ABW0
AST0
R/W
R/W
R/W
0
1
0
1
0
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