Datasheet

DMA CONTROLLER MODULE
7-2 MCF5206e USER’S MANUAL MOTOROLA
.
The DMA contains the following features:
• Two fully independent programmable DMA Controller Module channels
• Auto-alignment feature for source or destination accesses
• Single and dual address transfers
• Two external request pins provided
• Channel arbitration on transfer boundaries
Figure 7-1. DMA Signal Diagram
MUX
ARBITRATION/
EXTERNALDATAPATH
CONTROL
EXTERNAL
E
XTERNAL REQUESTS
MODULE ENABLE
CURRENT
CHANNELCHANNEL
CHANNEL
MUX CONTROL
EXTERNAL BUS ADDRESS
EXTERNAL BUS SIZE
EXTERNAL BUS
EXTERNAL BUS REGISTERED
MASTER
DATAPATH CONTROL
SAR
DAR
BCR
CNTRL
STATUS
CHANNEL 0
INTERRUPTS/
SAR
DAR
BCR
CNTRL
STATUS
CHANNEL 1
BUS
EXTERNAL BUS SIGNALS
BUS
EXTERNAL BUS
REQUESTS ATTRIBUTES
ENABLES
ATTRIBUTES
READ DATA
WRITE DATA
Fr
eescale S
emiconduct
or
, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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