Dma Request Sources - Motorola DSP56305 User Manual

Core Configuration

DMA Request Sources

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4.6 DMA REQUEST SOURCES
The DMA Request Source bits (DRS[4:0]) in the DMA Control/Status registers) encode
the source of DMA requests used to trigger DMA transfers. DMA request sources may
be internal peripherals or external devices requesting service through the IRQA, IRQB,
IRQC, or IRQD signals. Table 4-5 describes the meanings of the DRS bits.
4-20
FCOP Data Output Buffer Full
VCOP Data In Request
VCOP Output Buffer Full
VCOP Data Out Request
VCOP Processing Done
VCOP Operation Complete
CCOP Input FIFO Empty
CCOP Output FIFO Not Empty
CCOP Cipher Processing Done
CCOP Parity Code Processing Done
DSP56305 User's Manual
Interrupt Source
MOTOROLA