Datasheet

Table Of Contents
Section 6 Bus Controller
Page 116 of 846 REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
H8S/2215 Group
WCRL
Bit Bit Name Initial Value R/W Description
7
6
W31
W30
1
1
R/W
R/W
Area 3 Wait Control 1 and 0
These bits select the number of program wait states
when area 3 in external space is accessed while the
AST3 bit in ASTCR is set to 1.
00: Program wait not inserted when external space area
3 is accessed
01: 1 program wait state inserted when external space
area 3 is accessed
10: 2 program wait states inserted when external space
area 3 is accessed
11: 3 program wait states inserted when external space
area 3 is accessed
5
4
W21
W20
1
1
R/W
R/W
Area 2 Wait Control 1 and 0
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.
00: Program wait not inserted when external space area
2 is accessed
01: 1 program wait state inserted when external space
area 2 is accessed
10: 2 program wait states inserted when external space
area 2 is accessed
11: 3 program wait states inserted when external space
area 2 is accessed
3
2
W11
W10
1
1
R/W
R/W
Area 1 Wait Control 1 and 0
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.
00: Program wait not inserted when external space area
1 is accessed
01: 1 program wait state inserted when external space
area 1 is accessed
10: 2 program wait states inserted when external space
area 1 is accessed
11: 3 program wait states inserted when external space
area 1 is accessed