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
文件頁數(shù)： 62/70頁
文件大?。?/td> 348K
代理商： SAA7780
ThunderBird Q3D PCI Audio
Accelerator
SAA7780
Philips Semiconductors
Product Specification
1999 Sep 30
62
Interrupt Line Register - INTLINE (RO)
Interrupt PIN Register - INTPIN (RO)
MIN_GNT Register - MINGNT (RO)
Bit
Name
R/W
Function
15:0
SUBSYS_ID
RO
Subsystem ID. The Subsystem ID register allows the manufacturer to
uniquely identify their board since more than one board OEM may use the
SAA7780 chip. The Subsystem ID register is loaded by an external EEPROM
via the Serial Configuration Port after reset and before any access to the PCI
configuration header. The PCI target logic should force a retry if the
Subsystem ID register has not completed loading. The Subsystem ID is read
only to the PCI interface. If no external EEPROM is present, then the default
Subsystem ID is 0306h, identical to the SAA7780 function 2 Device ID.
PCI CFG 2
D7
D6
D5
D4
D3
D2
D1
D0
Offset 3Ch
INTLINE[7:0]
POR Value
0
0
0
0
0
0
0
0
Bit
Name
R/W
Function
7:0
INTLINE
RO
Interrupt Line. The Interrupt Line register is an eight bit register used to
communicate interrupt line routing information. The value in this register tells
which input of the system interrupt controller(s) the SAA7780 Device's
interrupt pin is connected to. It is set to 00h to use function 0’s interrupt line.
There is no legacy interrupt support for function 2.
PCI CFG 2
D7
D6
D5
D4
D3
D2
D1
D0
Offset 3Dh
INTPIN[7:0]
POR Value
0
0
0
0
0
0
0
0
Bit
Name
R/W
Function
7:0
INTPIN
RO
Interrupt Pin. The interrupt pin register tells which interrupt the SAA7780
device uses. The read only value of 00h implies that the SAA7780 device
shares the INT A interrupt pin with function 0. There is no legacy interrupt
support for function 2.
PCI CFG 2
D7
D6
D5
D4
D3
D2
D1
D0
Offset 3Eh
MINGNT[7:0]
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