参数资料
型号: YMF724F
厂商: Yamaha Corporation
英文描述: high performance audio controller for the PCI Bus
中文描述: 高性能音频控制器的PCI总线
文件页数: 17/50页
文件大小: 268K
代理商: YMF724F
YMF724F
January 14, 1999
-24-
4C-4Dh: D-DMA Slave Configuration
Read / Write
Default: 0000h
Access Bus Width: 8, 16, 32-bit
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
Base Address
EA
TS
CE
b0................CE: Channel Enable
This bit enables the Distributed DMA function.
“0”: Disable Distributed DMA
(default)
“1”: Enable Distributed DMA
b[2:1] ..........TS: Transfer Size
These bits indicate the size of the DMA transfer. Since DS-1 supports only 8-bit DMA transfer, the bits
are hardwired to 00b.
b3................EA: Extended Address
DS-1 does not support extended address mode.
This bit is hardwired to 0b.
b[15:4] ........Base Address : D-DMA Slave Base Address
These bits indicate the D-DMA slave base address.
50h: Capability ID
Read Only
Default: 01h
Access Bus Width: 8, 16, 32-bit
b7
b6
b5
b4
b3
b2
b1
b0
Capability ID
b[7:0] ..........Capability ID: Capability Identifier
This register indicates that the new capability register is for Power Management control.
This register is
hardwired to 01h.
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