AN2168 Freescale Semiconductor / Motorola, AN2168 Datasheet - Page 12
AN2168
Manufacturer Part Number
AN2168
Description
ColdFire Microprocessor DMA Controller Application Note
Manufacturer
Freescale Semiconductor / Motorola
Datasheet
1.AN2168.pdf
(28 pages)
Application Note
The DMA module is programmed with these values:
DSR = 0x01 ; clear status register
SAR = 0xFFE00400 ; source address = 0xFFE00400
DAR = 0x20000000 ; destination address = 0x20000000
BCR = 0x0004 ; transfer 4 bytes
DCR = 0x606A ; cycle steal, ext. request, source=16-bit, destination=8-bit
Figure 6. Cycle Steal Transfer Using External Request Mode — 1
AN2168
12
MOTOROLA
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