DSP56857 datasheet(230/662 Pages) FREESCALE

230 / 662 page

5685X Digital Signal Controller User Manual, Rev. 4

9-12

Freescale Semiconductor

9.6.5 DMA Destination Side Address High (DMADAH)

Figure 9-7. DMA Destination Address High (DMADAH)

See Programmer’s Sheet on Appendix page B - 47

9.6.5.1 Reserved—Bits 15–8

These bits are reserved or not implemented. They are read as, and written with 0s.

9.6.5.2 Destination Address High (DMADAH)—Bits 7–0

This is the upper byte of the DMA Destination Address. DMA data is written from this address.

If post-incrementing (or decrementing) is enabled, this value is updated with each write

transaction.

9.6.6 DMA Source Address Low (DMASAL)

Figure 9-8. DMA Source Address Low (DMASAL)

See Programmer’s Sheet on Appendix page B - 46

9.6.6.1 Source Address Low (DMASAL)—Bits 15-0

This is the lower word of the DMA Source Address. DMA data is read from this address.

post-incrementing (or decrementing) is enabled, this value is updated with each read transaction.

9.6.7 DMA Source Address High (DMASAH)

Figure 9-9. DMA Source Address High (DMASAH)

See Programmer’s Sheet on Appendix page B - 45

9.6.7.1 Reserved—Bits 15–8

These bits are reserved or not implemented. They are read as, and written with 0s.

Base + $4

Read

DMA DESTINATION ADDRESS (HIGH)

Write

Reset

000

Base + $5

Read

DMA SOURCE ADDRESS (LOW)

Write

Reset

000

Base + $6

Read

DMA SOURCE ADDRESS (HIGH)

Write

Reset

000

DSP56857 Datasheet(PDF) 230 Page - Freescale Semiconductor, Inc