HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 468

• Manufacturer Part Number: HD6412373R
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 8 EXDMA Controller (EXDMAC)
8.4.10
Single Address Mode (Read): Figure 8.22 shows an example of transfer when ETEND 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 8.23 shows an example of transfer when ETEND 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.7.00 Mar. 18, 2009 page 400 of 1136
REJ09B0109-0700
φ
Address bus
RD
EDACK
ETEND
φ
Address bus
RD
EDACK
ETEND
Bus release
EXDMAC Bus Cycles (Single Address Mode)
Figure 8.23 Example of Single Address Mode (Word Read) Transfer
Figure 8.22 Example of Single Address Mode (Byte Read) Transfer
Bus release
DMA read
DMA read
Bus release
Bus release
DMA read
Bus release
DMA read
DMA read
Bus release
Bus release
DMA read
Last transfer cycle
transfer
cycle
Last
DMA read
Bus release
Bus
release