278
Single Address Mode (Write): Figure 8-29 shows a transfer example in which
TEND
output is
enabled and byte-size single address mode transfer (write) is performed from an external device to
external 8-bit, 2-state access space.
DMA write
ø
Address bus
DMA
dead
HWR
DACK
TEND
Bus
release
LWR
DMA write
DMA write
DMA write
Bus
release
Bus
release
Bus
release
Bus
release
Last transfer
cycle
Figure 8-29 Example of Single Address Mode (Byte Write) Transfer
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 ...