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15.1 Overview of DMAC
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DMAC Block Diagram
Figure 15.1-2 is a DMAC block diagram.
Figure 15.1-2 DMAC Block Diagram
DPDP
DACSR
SADR
DADR
DATCR
DACK0-2
EOP0-2
3
3
3
3
8
DRE
Q
0-2
5
BLK DEC
BLK
DMACT
INC/DEC
Edge/level
detection circuit
Sequencer
Internal resource
transfer request
Interrupt request
Data buffer
Switcher
Mode
Data bus