Rev.6.00 Oct.28.2004 page 166
of 1016
REJ09B0138-0600H
7.1.2
Block Diagram
A block diagram of the DMAC is shown in figure 7-1.
Internal address bus
Address buffer
Processor
Internal interrupts
TGI0A
TGI1A
TGI2A
TGI3A
TGI4A
TGI5A
TXI0
RXI0
TXI1
RXI1
ADI
External pins
DREQ0
DREQ1
TEND0
TEND1
DACK0
DACK1
Interrupt signals
DEND0A
DEND0B
DEND1A
DEND1B
Control logic
DMAWER
DMACR1B
DMACR1A
DMACR0B
DMACR0A
DMATCR
DMABCR
Data buffer
Internal data bus
MAR0A
IOAR0A
ETCR0A
MAR0B
IOAR0B
ETCR0B
MAR1A
IOAR1A
ETCR1A
MAR1B
IOAR1B
ETCR1B
Legend:
DMA write enable register
DMA terminal control register
DMA band control register (for all channels)
DMA control register
Memory address register
I/O address register
Executive transfer counter register
Channel 0
Channel 1
Channel 0A
Channel 0B
Channel 1A
Channel 1B
Module data bus
DMAWER:
DMATCR:
DMABCR:
DMACR:
MAR:
IOAR:
ETCR:
Figure 7-1 Block Diagram of DMAC
Summary of Contents for ZTAT H8S/2357F
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