ASYNC_GETENHANCEDMODEPARMS (74h) - Enhanced Flags1

Enhanced Flags1

Has the following settings (see Remarks for more information):

Bit 0

Enhanced mode supported by hardware.
Bit 1
Enable the Enhanced mode (default)
Bits 2-3
DMA Receive Operation request. Has the following:

Bit 3

Bit 2 Description
0
0 Disable DMA Receive Capability
0
1 Enable DMA Receive Capability (Default)
1
0 Dedicate a DMA channel to Receive operation
1
1 Reserved
Bits 4-5
DMA Transmit operation request. Has the following:

Bit 5

Bit 4 Description
0
0 Disable DMA Transmit Capability
0
1 Enable DMA Transmit Capability (Default)
1
0 Dedicate a DMA channel to Transmit operation
1
1 Reserved
Bit 6
Receive operation in DMA mode
Bit 7
Transmit operation in DMA mode

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