Miles Sound System SDK 7.2a

DDK Digital Function: DMAC_program

Discussion

Input:

DMA_channel = DMA channel in use (0-7)
DMA_mode = Selected DMAMODE type for transfer
DMA_buffer = DMA buffer address in segment:offset format
DMA_cnt = DMA byte count-1 (0-65535 = 1-65536 bytes)

Output:

Nothing
All registers changed

Purpose:

Program DMA controller to perform transfer from lower 1MB based on previously selected mode and channel

Notes:

DMA transfer may be enabled by subsequent call to DMAC_enable

Group: DDK Support Routines for Digital Sound Drivers