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YMF744B
00-01h: Vendor ID
Read Only
Default: 1073h
Access Bus Width: 8, 16, 32-bit
b15
b14
b13
b[15:0] ........Vendor ID
This register contains the YAMAHA Vendor ID registered in Revision 2.2. This register is hardwired to
1073h.
02-03h: Device ID
Read Only
Default: 0010h
Access Bus Width: 8, 16, 32-bit
b15
b14
b13
b[15:0] ........Device ID
This register contains the Device ID of DS-1S. This register is hardwired to 0010h.
04-05h: Command
Read / Write
Default: 0000h
Access Bus Width: 8, 16, 32-bit
b15
b14
b13
-
-
-
b0................IOS: I/O Space
This bit is a dummy one that is capable of writing. This bit indicates for BIOS or OS that DS-1S
includes I/O devices.
b1................MS: Memory Space
This bit enables DS-1S to response to Memory Space Access.
"0": DS-1S ignores Memory Space Access.
"1": DS-1S responds to Memory Space Access.
b2................BME: Bus Master Enable
This bit enables DS-1S to act as a master device on the PCI bus.
"0": Do not set DS-1S to be the master device.
"1": Set DS-1S to be the master device.
b12
b11
b10
b9
b12
b11
b10
b9
b12
b11
b10
b9
-
-
-
-
b8
b7
b6
b5
Vendor ID
b8
b7
b6
b5
Device ID
b8
b7
b6
b5
SER
-
PER
(default)
(default)
-11-
b4
b3
b2
b4
b3
b2
b4
b3
b2
-
-
-
BME
February 3, 1999
b1
b0
b1
b0
b1
b0
MS
IOS
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