參數(shù)資料
型號： AD1888JST
廠商： ANALOG DEVICES INC
元件分類： 消費家電
英文描述： CONNECTOR
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝： MS-026BBC, LQFP-48
文件頁數(shù)： 23/32頁
文件大?。?/td> 312K
代理商： AD1888JST
REV. 0
AD1888
–23–
JS0INT
Indicates Pin JS0 has generated an interrupt. Remains set until the software services JS0 interrupt, i.e., JS0 ISR
should clear this bit by writing a 0 to it. Note that the interrupt to the system is actually an OR combination of this
bit and JS1INT. Also, note that the actual interrupt implementation is selected by the INTS bit (Register 76h).
It is also possible to generate a software system interrupt by writing a 1 to this bit.
JS1INT
Indicates Pin JS1 has generated an interrupt. Remains set until the software services JS1 interrupt, i.e., JS1 ISR
should clear this bit by writing a 0 to it. See the JS0INT description for additional details.
JS0ST
JS0 STATE. This bit always reports the logic state of the JS0 pin.
JS1ST
JS1 STATE. This bit always reports the logic state of the JS1 pin.
JS0MD
JS0 Mode. This bit selects the operation mode for the JS0 pin.
0 = Jack Sense Mode (reset default)
1 = Interrupt Mode
JS1MD
JS1 Mode. This bit selects the operation mode for the JS1 pin.
0 = Jack Sense Mode (reset default)
1 = Interrupt Mode
JS0TMR
JS0 Timer Enable. If this bit is set to a 1, JS0 must be high for greater than 278 ms to be recognized.
JS1TMR
JS1 Timer Enable. If this bit is set to a 1, JS1 must be high for greater than 278 ms to be recognized.
JSMT[2,0]
JS Mute Enable Selector. These three bits select and enable the Jack Sense muting action (see Table IX).
JS0DMX
JS0 Down Mix Control Enable. This bit enables JS0 to control the down-mix function. This function allows a
digital mix of six channels of audio into 2-channel audio. The mix can then be routed to the stereo Line_OUT or
HP_OUT jacks. When this bit is set to 1, JS0 = 1 will activate the down-mix conversion.
See the DMIX description in Register 76h. The DMIX bits select the down-mix implementation type and can also
force the function to be activated.
JS1DMX
JS1 Down Mix Control Enable. This bit enables 2-channel to 6-channel audio spread function when both Jack
Senses are active (logic state 1).
Note that the SPRD bit can also force the spread function without being gated by the Jack Senses. See this bit’s
description in Register 76h for a better understanding of the spread function.
JS1SPRD
JS Spread Control Enable. This bit enables 2-channel to 6-channel audio spread function when both Jack Senses are
active (logic state 1).
Note that the SPRD bit can also force the spread function without being gated by the Jack Senses. See this bit’s
description in Register 76h for a better understanding of the spread function.
Jack Sense/Audio Interrupt Status Register (Index 72h)
Reg
No.
Name
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Default
72h
Jack
Sense
JS1
SPRD DMX
JS1
JS0
DMX
JS
MT2
JS
MT1
JS
MT0
X
X
JS1
TMR
JS0
TMR
JS1
MD
JS0
MD
JS1
ST
JS0
ST
JS1
INT
JS0
INT
0000h
All register bits are read/write except for JS0ST and JS1ST, which are read only.
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