Renesas H8S Series Hardware Manual page 140

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
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
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
Rev.6.00 Oct.28.2004 page 112 of 1016
REJ09B0138-0600H
Bit 4
W20 Description
0 Program wait not inserted when external space area 2 is accessed
1 1 program wait state inserted when external space area 2 is accessed
0 2 program wait states inserted when external space area 2 is accessed
1 3 program wait states inserted when external space area 2 is accessed
Bit 2
W10 Description
0 Program wait not inserted when external space area 1 is accessed
1 1 program wait state inserted when external space area 1 is accessed
0 2 program wait states inserted when external space area 1 is accessed
1 3 program wait states inserted when external space area 1 is accessed
Bit 0
W00 Description
0 Program wait not inserted when external space area 0 is accessed
1 1 program wait state inserted when external space area 0 is accessed
0 2 program wait states inserted when external space area 0 is accessed
1 3 program wait states inserted when external space area 0 is accessed
(Initial value)
(Initial value)
(Initial value)