ALS300 Datasheet, PDF (56/66 Pages) List of Unclassifed Manufacturers – Media Audio Controller SPEC

Avance Logic Inc.
ALS300
Index : 00-01h Read only
Bit 15~8
40h (Vendor ID high byte)
Bit 7~0
05h (Vendor ID low byte)
Device ID register :
Index : 02-03h Read only
Bit 15~8
03h (Device ID high byte)
Bit 7~0
00h (Device ID low byte)
Command register :
Default 00h
Index : 04-05h R/W
Bit 2~0
0
Disable
1
Enable
Bit 15~3
Reserved, read as 0
Bit 2
Bus Master enable
Bit 1
Memory access enable
Bit 0
IO access enable
Write PCI configuration register indexed 04h will reset ALS300 bus master.
Status register :
Index : 06-07h
Read only
Default 00h
Read :
Bit 15~11 Reserved ,read as 0
Bit 10,9
DEVSEL# Timing
Read as 01 (Medium Timing)
Bit 8
Data Parity Reported
0
Normal
1
Data parity error detected
Bit 7~0
Reserved, read as 0
Write one bit with 1 will clear this bit.
Class code register :
Index : 09~0Bh Read only
Read as 040100h (Multimedia Audio Device)
Latency Timer Register :
Index: 0Dh
R/W
Default : 00h
Bit 7~4
No. of PCI clock that ALS300 retain ownership of bus.
Bit 3~0
Reserved , read as 0
Base Address Register 0 : (IO SPACE 0)
Index : 10~13h R/W
Default : 0001h
Bit 0
Read as 1 (IO base address indicator)
Bit 4~1
Reserved, read as 0
Bit 31~5
IOBASE bit 31~5 (32-bytes IO space)
Base Address Register 1 : (Memory Space)
Index 14~17h R/W
Default : 0000h
Bit 20~0
Read as 0
Bit 31~21
DRAMBASE bit 31~21 (2M bytes)
Subsystem Vendor ID :
Index : 2C~2Dh Read only
Default : 4005h
Bit 15~0Subsystem Vendor ID
If external E²PROM is enabled, subsystem vendor ID will be load from
E²PROM after reset.
Subsystem ID :
Index : 2E~2Fh Read only
Default : 0000h
Bit 15~0Subsystem ID
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