r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 404

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 7 DMA Controller (DMAC)
(2)
Figure 7.28 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.
Figure 7.29 shows a transfer example in which TEND output is enabled and word-size single
address mode transfer (write) is performed from an external device to external 8-bit, 2-state access
space.
Rev. 1.00 Sep. 19, 2008 Page 374 of 1342
REJ09B0467-0100
Single Address Mode (Write)
Address bus
Figure 7.28 Example of Single Address Mode Transfer (Byte Write)
DACK
TEND
HWR
LWR
φ
release
Bus
DMA write
release
Bus
DMA write
release
Bus
DMA write
release
Bus
DMA write
Last transfer
cycle
DMA
dead
release
Bus