h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 229
h8s-2172
Manufacturer Part Number
h8s-2172
Description
Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2172.pdf
(570 pages)
- Current page: 229 of 570
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Figure 7.26 shows an example of transfer when TEND output is enabled, and longword-size,
single address mode transfer (read) is performed from external 16-bit, 2-state access space to an
external device.
Single Address Mode (Write): Figure 7.27 shows an example of transfer when 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 7.28 shows an example of transfer when 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.
Address bus
φ
Address bus
Figure 7.26 Example of Single Address Mode (Longword Read) Transfer
φ
Figure 7.27 Example of Single Address Mode (Byte Write) Transfer
release
Bus release
Bus
DMA write
DMA read
Bus release
release
DMA write
Bus
Bus release
DMA read
DMA write
Bus release
Rev. 2.00, 03/04, page 197 of 534
release
Bus
DMA write
transfer
Last transfer cycle
cycle
Last
DMA read
Bus release
release
Bus
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