Dmac Bus Cycles (Single Address Mode) - Renesas H8S/2633 Series Hardware Manual

8.5.11

DMAC Bus Cycles (Single Address Mode)

Single Address Mode (Read): Figure 8-27 shows a transfer example in which TEND output is
enabled and byte-size single address mode transfer (read) is performed from external 8-bit, 2-state
access space to an external device.
ø
Address bus
RD
DACK
TEND
Bus
release
Figure 8-27 Example of Single Address Mode (Byte Read) Transfer
310
DMA read DMA read
Bus
release
DMA read DMA read
Bus Bus
release release
DMA
dead
Last transfer Bus
cycle release