參數(shù)資料
型號: SAA7785
廠商: NXP Semiconductors N.V.
英文描述: ThunderBird Avenger(TM) PCI Audio Accelerator(雷鳥Avenger(TM)PCI音頻加速器)
中文描述: 雷鳥復仇者(商標)的PCI音頻加速器(雷鳥復仇者(商標)的PCI音頻加速器)
文件頁數(shù): 67/68頁
文件大?。?/td> 1303K
代理商: SAA7785
ThunderBird Avenger
TM
PCI Audio
Accelerator
SAA7785
Philips Semiconductors
Preliminary Specification
1999
Nov 12
67
TABLE 72
TMCOUNT1 (RW) - MULTIMEDIA TIMER COUNT REGISTER 1
TABLE 73
TMCOUNT0 (RW) - MULTIMEDIA TIMER COUNT REGISTER 0
PCI I/O SPACE GPIO SUPPORT
The Multimedia Timer house eight General Purpose I/O ports. These ports are independently controlled under host
software.
TABLE 74
PGPIODIR (RW) - PCI GENERAL PURPOSE INPUT/OUPUT DIRECTION
3:0
TMCOUNT2
RW
High Nibble Timer Count. This nibble is the most significant digits of the timer
value.
SONGBASE
D7
D6
D5
D4
D3
D2
D1
D0
Offset 02h
TMCOUNT1[7:0]
POR Value
0
0
0
0
0
0
0
0
Bit
Name
R/W
Function
7:0
TMCOUNT1
RW
Middle Byte Timer Count. This byte is the middle significant digits of the timer
value.
SONGBASE
D7
D6
D5
D4
D3
D2
D1
D0
Offset 01h
TMCOUNT0[7:0]
POR Value
0
0
0
0
0
0
0
0
Bit
Name
R/W
Function
7:0
TMCOUNT0
RW
Low Byte Timer Count. This byte is the least significant digits of the timer
value.
SONGBASE
D7
D6
D5
D4
D3
D2
D1
D0
Offset 04h
PGPIO_DIR[7:0]
POR Value
0
0
0
0
0
0
0
0
Bit
Name
R/W
Function
7:0
PGPIO_DIR
RW
PCI General Purpose I/O Data Direction Bit. These bits control whether the
GPIO pins 0 through 7 act as an input or an output.
0 = Selected GPIO pin is an output.
1 = Selected GPIO pin is an input.
Bit
Name
R/W
Function
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