Datasheet

Table Of Contents
Section 6 Bus Controller
REJ09B0140-0900 Rev. 9.00 Page 115 of 846
Sep 16, 2010
H8S/2215 Group
Bit Bit Name Initial Value R/W Description
3
2
W51
W50
1
1
R/W
R/W
Area 5 Wait Control 1 and 0
These bits select the number of program wait states
when area 5 in external space is accessed while the
AST5 bit in ASTCR is set to 1.
00: Program wait not inserted when external space area
5 is accessed
01: 1 program wait state inserted when external space
area 5 is accessed
10: 2 program wait states inserted when external space
area 5 is accessed
11: 3 program wait states inserted when external space
area 5 is accessed
1
0
W41
W40
1
1
R/W
R/W
Area 4 Wait Control 1 and 0
These bits select the number of program wait states
when area 4 in external space is accessed while the
AST4 bit in ASTCR is set to 1.
00: Program wait not inserted when external space area
4 is accessed
01: 1 program wait state inserted when external space
area 4 is accessed
10: 2 program wait states inserted when external space
area 4 is accessed
11: 3 program wait states inserted when external space
area 4 is accessed
Note: * The on-chip USB is allocated to area 6. Therefore these bits should be set to 0.