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參數(shù)資料
型號: AS2540
廠商: ams
文件頁數(shù): 18/19頁
文件大?。?/td> 0K
描述: IC TELEPHONE CMOS MULTIFU 28SOIC
標準包裝: 27
系列: *
Data Sheet AS2540
austriamicrosystems
Revision 3.1
Page 7 of 18
d7
d6
d5
d4
d3
d2
d1
d0
Pin-Control message
Notes
xx
10111
1
SetTestmode
FOR FACTORY TEST ONLY
xx
10100
1
MuteON
Mute Transmit path
xx
10101
1
MuteOFF
d7
d6
d5
d4
d3
d2
d1
d0
Path-Control message
Notes
xx
11001
1
SetHandsetPath
xx
11101
1
SetMonitorPath
xx
11010
1
SetModemPath
xx
11000
1
RequestStatus
AS2540 sends Status information
xx
11011
1
reserved
<LineEvent>
xx
11100
1
reserved
<LineEvent>
xx
11110
1
reserved
<LineEvent>
xx
11111
1
reserved
<LineEvent>
Tx messages
<Ack> message
<Ack> message format for <RequestStatus>
b7
MSB
b6
b5
b4
b3
b2
01
LSB
b7
b6
b5
b4
b3
b2
b1
b0
Status
Remark
1
0
1
valid ring signal detected
0
0
1
no ring signal
1
0
1
manual hook switch - off-hook (pin MHS)
0
0
1
manual hook switch - on-hook (pin MHS)
1
0
1
electronic hook switch - off-hook (pin EHS)
0
0
1
electronic hook switch - on-hook (pin EHS)
Status of AS2540
000
0
1
no LLC comparator .....................
001
0
1
LLC comparator 20mA (45mA) ...
010
0
1
LLC comparator 26mA (51mA) ...
011
0
1
LLC comparator 32mA (57mA) ...
100
0
1
LLC comparator 38mA (63mA) ...
101
0
1
LLC comparator 44mA (69mA) ...
110
0
1
LLC comparator 50mA (75mA) ...
coded status of
LLC comparator
ams
AG
Technical
content
still
valid
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