193
T
1
Address bus
ø
CS0
AS
Data bus
T
2
T
1
T
1
Full access
RD
Burst access
Low address only changes
Read data
Read data Read data
Figure 7-32 (b) Example Burst ROM Access Timing (AST0=BRSTS1=0)
7.7.3
Wait Control
As with the basic bus interface, either program wait insertion or pin wait insertion using the
WAIT
pin can be used in the initial cycle (full access) of the burst ROM interface. See Section 7.4.5,
Wait Control.
Wait states cannot be inserted in the burst cycle.
Содержание H8S/2631
Страница 28: ...xviii Appendix G Package Dimensions 1154 ...
Страница 341: ...316 Transfer SAR or DAR DAR or SAR Block area First block Nth block Figure 9 8 Memory Mapping in Block Transfer Mode ...
Страница 918: ...905 ø DREQ0 DREQ1 tDRQS tDRQH Figure 25 19 DMAC DREQ Input Timing ...
Страница 955: ...943 A 2 Instruction Codes Table A 2 shows the instruction codes ...