3069RF-ZTAT Datasheet, PDF (862/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

ABWCR—Bus Width Control Register
H'EE020
Bus controller
Bit
7
ABW7
Modes 1, 3, 5, 7 Initial value
1
Modes 2, 4
Initial value
0
Read/Write R/W
6
ABW6
1
0
R/W
5
ABW5
1
0
R/W
4
ABW4
1
0
R/W
3
ABW3
1
0
R/W
2
ABW2
1
0
R/W
1
0
ABW1 ABW0
1
1
0
0
R/W R/W
Area 7 to 0 bus width control
Bits 7 to 0
ABW7
to ABW0
0
1
Bus Width of Access Area
Areas 7 to 0 are 16-bit access areas
Areas 7 to 0 are 8-bit access areas
ASTCR—Access State Control Register
H'EE021
Bus controller
Bit
Initial value
Read/Write
7
AST7
1
R/W
6
AST6
1
R/W
5
AST5
1
R/W
4
AST4
1
R/W
3
AST3
1
R/W
2
AST2
1
R/W
1
AST1
1
R/W
0
AST0
1
R/W
Area 7 to 0 access state control
Bits 7 to 0
AST7
to AST0
0
1
Number of States in Access Area
Areas 7 to 0 are two-state access areas
Areas 7 to 0 are three-state access areas
Rev. 5.0, 09/04, page 840 of 978