HD6432633 Datasheet, PDF (364/1453 Pages) Renesas Technology Corp – Series of Microcomputers (MCUs: microcomputer units)

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
DMA read
DMA read
DMA read
DMA
DMA read dead
Bus
release
Bus
release
Bus
release
Bus Last transfer Bus
release cycle
release
Figure 8-27 Example of Single Address Mode (Byte Read) Transfer
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