r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 402

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 7 DMA Controller (DMAC)
7.5.10
(1)
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.
Figure 7.27 shows a transfer example in which TEND output is enabled and word-size single
address mode transfer (read) is performed from external 8-bit, 2-state access space to an external
device.
Rev. 1.00 Sep. 19, 2008 Page 374 of 1270
REJ09B0466-0100
Single Address Mode (Read)
Address bus
DMA Transfer (Single Address Mode) Bus Cycles
DACK
TEND
Figure 7.26 Example of Single Address Mode Transfer (Byte Read)
RD
φ
release
Bus
DMA read
release
Bus
DMA read
release
Bus
DMA read
release
Bus
DMA read
Last transfer
cycle
DMA
dead
release
Bus