3069RF-ZTAT Datasheet, PDF (142/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

Bits 5 and 4—Area 2 Wait Control 1 and 0 (W21, W20): These bits select the number of
program wait states when area 2 in external space is accessed while the AST2 bit in ASTCR is set
to 1.
Bit 5
W21
0
1
Bit 4
W20
0
1
0
1
Description
Program wait not inserted when external space area 2 is accessed
1 program wait state inserted when external space area 2 is accessed
2 program wait states inserted when external space area 2 is accessed
3 program wait states inserted when external space area 2 is accessed
(Initial value)
Bits 3 and 2—Area 1 Wait Control 1 and 0 (W11, W10): These bits select the number of
program wait states when area 1 in external space is accessed while the AST1 bit in ASTCR is set
to 1.
Bit 3
W11
0
1
Bit 2
W10
0
1
0
1
Description
Program wait not inserted when external space area 1 is accessed
1 program wait state inserted when external space area 1 is accessed
2 program wait states inserted when external space area 1 is accessed
3 program wait states inserted when external space area 1 is accessed
(Initial value)
Bits 1 and 0—Area 0 Wait Control 1 and 0 (W01, W00): These bits select the number of
program wait states when area 0 in external space is accessed while the AST0 bit in ASTCR is set
to 1.
Bit 1
W01
0
1
Bit 0
W00
0
1
0
1
Description
Program wait not inserted when external space area 0 is accessed
1 program wait state inserted when external space area 0 is accessed
2 program wait states inserted when external space area 0 is accessed
3 program wait states inserted when external space area 0 is accessed
(Initial value)
Rev. 5.0, 09/04, page 120 of 978