參數(shù)資料
型號(hào): 82C931
廠商: Electronic Theatre Controls, Inc.
英文描述: Plug and Play Integrated Audio Controller
中文描述: 即插即用集成音頻控制器
文件頁(yè)數(shù): 24/64頁(yè)
文件大?。?/td> 634K
代理商: 82C931
82C931
Page 16
912-3000-035
Revision: 2.1
OPTi
3.3.1.4
Game Port and Modem Interface Signals
Signal Name
Pin No.
Signal Type
(Drive)
Signal Description
GD7
31
I/O-CMOS-Smt
(8mA)
Game Port 2 Data Line 7
MODEMCS#
Modem Chip Select:
Output to external modem chip select pin.
MODEM#
Modem Interface Enable Jumper Input:
Jumper setting is latched at
power-on reset. Jumper pull-up: disable (default), pull-down: enable.
An external pull-up is required on this pin.
VOLUP
Volume Up:
Interface for push-button volume control. Used to
increase volume.
GD6
30
I/O-CMOS-Smt
(8mA)
Game Port 2 Data Line 6
MODEMINT
Modem Interrupt:
Interrupt signal from external modem.
VOLDWN
Volume Down:
Interface for push-button volume control. Used to
decrease volume. An external pull-up is required on this pin.
GD5
29
I/O-CMOS
(8mA)
Game Port 1 Data Line 5
An external pull-up is required on this pin.
VOLUP
Volume Up:
Interface for push-button volume control. Used to
increase volume. VOLUP on pin 29 is only available in rev. 1.1 silicon.
GD4
28
I/O-CMOS
(8mA)
Game Port 1 Data Line 4
An external pull-up is required on this pin.
VOLDN
Volume Down:
Interface for push-button volume control. Used to
decrease volume. VOLDN on pin 28 is only available in rev. 1.1 silicon.
GD3
26
I/O-CMOS
(8mA)
Game Port 2 Data Line 3
IRQ4
Interrupt Request Bit 4
GD2
25
I/O-CMOS
(8mA)
Game Port 2 Data Line 2
IRQ3
Interrupt Request Bit 3
GD1
24
I/O-CMOS
(8mA)
Game Port 1 Data Line 1
GD0
23
I/O-CMOS
(8mA)
Game Port 1 Data Line 0
3.3.1.5
Codec/Mixer Interface Signals
Signal Name
Pin No.
Signal/Pin
Type (Drive)
Signal Description
MICL
97
I-Analog
Microphone Input Left
MICR
98
I-Analog
Microphone Input Right
LINEL
96
I-Analog
Line Input Left
LINER
99
I-Analog
Line Input Right
CDL
95
I-Analog
CD Input Left
CDR
100
I-Analog
CD Input Right
931-AD Mode Signal Descriptions (cont.)
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