AMD SB600 User Manual

Page 224

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©2008 Advanced Micro Devices, Inc.

AC ’97 Controller Functional Descriptions

AMD SB600 Register Reference Manual

Proprietary

Page 224

Output DMA2 DT Start– R - 32 bits - [MEM_Reg: 50h]

Field Name

Bits

Default

Description

out DMA2 DT start

31:0

0000_0000h Pointer to the start of data associated with current DT

for the Output DMA2.

Output DMA2 Discrete Table (DT) Start Pointer Register:

Output DMA2 DT Next– R - 32 bits - [MEM_Reg: 54h]

Field Name

Bits

Default

Description

out DMA2 DT next

31:0

0000_0000h Pointer to the next DT for the Output DMA2

Output DMA2 DT Next Pointer Register:

Output DMA2 DT Current– R - 32 bits - [MEM_Reg: 58h]

Field Name

Bits

Default

Description

out DMA2 DT current

31:0

0000_0000h Pointer to the currently accessing memory address for

the Output DMA2.

Output DMA2 DT Current Pointer Register:

Output DMA3 DT Start– R - 32 bits - [MEM_Reg: 5Ch]

Field Name

Bits

Default

Description

out DMA3 DT start

31:0

0000_0000h Pointer to the start of data associated with current DT

for the Output DMA3.

Output DMA3 Discrete Table (DT) Start Pointer Register:

Output DMA3 DT Next– R - 32 bits - [MEM_Reg: 60h]

Field Name

Bits

Default

Description

out DMA3 DT next

31:0

0000_0000h Pointer to the next DT for the Output DMA3

Output DMA3 DT Next Pointer Register:

Output DMA3 DT Current– R - 32 bits - [MEM_Reg: 64h]

Field Name

Bits

Default

Description

out DMA3 DT current

31:0

0000_0000h Pointer to the currently accessing memory address for

the Output DMA3.

Output DMA3 DT Current Pointer Register:

Output DMA 1/2 DT Size– R - 32 bits - [MEM_Reg: 68h]

Field Name

Bits

Default

Description

out DMA 1 DT size

15:0

0000h

Data size of DT for Output DMA # 1.

out DMA 2 DT size

31:16

0000h

Data size of DT for Output DMA # 2.

Output DMA 1/2 DT Size Register:

Output DMA 3 DT Size– R - 32 bits - [MEM_Reg: 6Ch]

Field Name

Bits

Default

Description

out DMA 1 DT size

15:0

0000h

Data size of DT for Output DMA # 1.

Reserved 31:16

0000h

Output DMA 3 DT Size Register:

Output DMA 1/2/3 FIFO Info– R - 32 bits - [MEM_Reg: 70h]

Field Name

Bits

Default

Description

out DMA1 Used

4:0

00h

Number of filled FIFO entries of Output DMA1 (FIFO
size 6).

out DMA2 Used

9:5

00h

Number of filled FIFO entries of Output DAM2 (FIFO
size 6).

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