參數(shù)資料
型號(hào): SAA7780
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: ThunderBird Q3DE PCI Audio Accelerator(雷鳥 Q3DE PCI音頻加速器)
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP160
封裝: 28 X 28 MM, 3.42 MM HEIGHT, PLASTIC, QFP-160
文件頁(yè)數(shù): 56/70頁(yè)
文件大?。?/td> 348K
代理商: SAA7780
ThunderBird Q3D PCI Audio
Accelerator
SAA7780
Philips Semiconductors
Product Specification
1999 Sep 30
56
Device ID Register - DEVICE_ID (RO)
Command Register - COMMAND (RO/RW)
PCI CFG 2
D15
D14
D13
D12
D11
D10
D9
D8
Offset 02h
DEVICE_ID[15:8]
POR Value
0
0
0
0
0
0
1
1
D7
D6
D5
D4
D3
D2
D1
D0
DEVICE_ID[7:0]
POR Value
0
0
0
0
0
1
1
0
Bit
Name
R/W
Function
15:0
DEVICE_ID
RO
The Device ID for the SAA7780, function 2 is 0306h.
PCI CFG 2
D15
D14
D13
D12
D11
D10
D9
D8
Offset 04h
R
R
R
R
R
R
FBACK_
ENB
SERR_R
ESP
POR Value
0
0
0
0
0
0
0
0
D7
D6
D5
D4
D3
D2
D1
D0
STEP-
PING
PERR_
RESP
SNOOP_
ENB
MEM_
INV_EN
SPEC_
CNTL
MAST_
CNTL
MEM_
CNTL
IO_
CNTL
POR Value
0
0
0
0
0
0
0
0
Bit
Name
R/W
Function
15:10
R
RO
Reserved. These bits always return zero.
9
FBACK_ENB
RO
Fast Back-to-Back Enable: the SAA7780, function 2 does not support fast
back to back master cycles therefore this bit always returns a zero.
8
SERR_RESP
RW
System Error Response: When set to 1, the SAA7780, function 2 responds to
detected PCI bus address parity errors by asserting SERR#. When 0, the
SAA7780 ignores these errors.
7
STEPPING
RO
Address / Data Stepping: Always returns 0.
6
PERR_RESP
RW
Parity Error Response: When set to 1, the SAA7780, function 2 responds to
detected PCI bus data parity errors by asserting PERR#. When 0, the
SAA7780 ignores PCI bus data parity errors.
5
SNOOP_ENB
RO
VGA Snoop Enable. The SAA7780, function 2 does not support VGA snoop
enable, therefor this bit always returns a zero.
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