YMF724F
0Dh: Latency Timer
Read / Write
Default: 00h
Access Bus Width: 8, 16, 32-bit
b7
b6
b5
b4
b3
b2
b1
b0
Latency Timer
b[7:0] ..........Latency Timer
When DS-1 becomes a Bus Master device, this register indicates the initial value of the Master Latency
Timer.
0Eh: Header Type
Read Only
Default: 00h
Access Bus Width: 8, 16, 32-bit
b7
b6
b5
b4
b3
b2
b1
b0
Header Type
b[7:0] ..........Header Type
This register indicates the device type of DS-1. This is hardwired to 00h.
10 - 13h: PCI Audio Memory Base Address
Read / Write
Default: 00000000h
Access Bus Width: 8, 16, 32-bit
b15
MBA
b31
b14
b13
b12
b11
b10
b9
-
b8
-
b7
-
b6
-
b5
-
b4
-
b3
-
b2
-
b1
-
b0
-
-
-
-
-
-
b30
b29
b28
b27
b26
b25
b24
b23
b22
b21
b20
b19
b18
b17
b16
MBA (higher)
b[31:15] ......MBA: Memory Base Address
This register indicates the physical Memory Base address of the PCI Audio registers in DS-1. The base
address can be located anywhere in the 32-bit address space. Data in the DS-1 register is not
prefetchable.
DS-1 needs 32768-bytes of memory address space.
January 14, 1999
-14-
YAMAHA [ YAMAHA CORPORATION ]
