h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 187
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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: 187 of 570
- Download datasheet (5Mb)
Figure 7.1 shows a block diagram of the DMAC.
7.2
Table 7.1 shows the pin configuration of the DMAC.
The corresponding port to the DACK pin automatically enters the output state by the setting of the
single address transfer mode. When the DREQ pin is used, the corresponding port must not enter
the output state. Whether the corresponding port to the TEND/DRAK pin is used as TEND/DRAK
pin can be set by the register.
for individual channels
on-chip USB module
On-chip USB module
Internal signals with
n = 0 to 3
Legend
DMSAR_n:
DMDAR_n:
DMTCR_n:
DMMDR_n:
DMACR_n:
Interrupt request
Input/Output Pins
signals to CPU
External pins
:
:
:
:
DMA source address register
DMA destination address register
DMA transfer count register
DMA mode control register
DMA address control register
DMA transfer request
DMA transfer end
DMA transfer acknowledge
acceptance acknowledge
Figure 7.1 Block Diagram of DMAC
Data buffer
Control logic
DMMDR_n
DMACR_n
Internal data bus
Bus controller
Rev. 2.00, 03/04, page 155 of 534
Address buffer
DMSAR_n
DMDAR_n
DMTCR_n
Processor
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