HD6413007F20 Datasheet, PDF (146/798 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

6. Bus Controller
Bits 7 and 6⎯Area 3 Wait Control 1 and 0 (W31, W30): 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.
Bit 7
W31
0
1
Bit 6
W30
0
1
0
1
Description
Program wait not inserted when external space area 3 is accessed
1 program wait state inserted when external space area 3 is accessed
2 program wait states inserted when external space area 3 is accessed
3 program wait states inserted when external space area 3 is accessed
(Initial value)
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)
Rev.5.00 Sep. 12, 2007 Page 116 of 764
REJ09B0396-0500