Datasheet

Section 7 DMA Controller (DMAC)
Page 384 of 1384 R01UH0310EJ0500 Rev. 5.00
Sep 25, 2012
H8S/2426, H8S/2426R, H8S/2424 Group
7.5.10 DMA Transfer (Single Address Mode) Bus Cycles
(1) Single Address Mode (Read)
Figure 7.26 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.
DMA read
Address bus
φ
DMA
dead
RD
DACK
TEND
Bus
release
DMA read DMA read DMA read
Bus
release
Bus
release
Bus
release
Bus
release
Last transfer
cycle
Figure 7.26 Example of Single Address Mode Transfer (Byte Read)