SI2457-C-GT Silicon Laboratories Inc, SI2457-C-GT Datasheet - Page 62
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SI2457-C-GT
Manufacturer Part Number
SI2457-C-GT
Description
IC ISOMODEM SYSTEM-SIDE 24TSSOP
Manufacturer
Silicon Laboratories Inc
Datasheet
1.SI2404-C-FS.pdf
(74 pages)
Specifications of SI2457-C-GT
Mfg Application Notes
SI2493/57/34/15/04, Appl Note AN93
Data Format
V.21, V.22, V.23, V.32, V.34, V.90, Bell 103, Bell 212A
Baud Rates
56k
Interface
Parallel, UART
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Surface Mount
Package / Case
24-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Si2457/34/15/04
U7C GENC
Reset settings = 0x0000
U7D GEND
Reset settings = 0x0000
62
Name
Name
15:5
13:2
Type
Type
Bit
3:1
Bit
15
14
Bit
Bit
4
0
1
0
RIGPOEN 0 = RI indicates valid ring signal. (Normal ring-indicator mode)
D15 D14 D13 D12 D11 D10
Reserved Reads returns to zero.
Reserved Reads returns to zero.
Reserved Reads returns to zero.
Reserved Reads returns to zero.
D15 D14 D13 D12 D11 D10
RIGPO
Name
Name
ATZD
NLM
FDP
NLM
R/W
RI
RI follows this bit when RIGPIOEN = 1
1 = RI can be used as a general purpose output and follows U7C[4] (RIGPO).
0 = Enables “No Loop Current” detect.
1 = Disables “No Loop Current” detect.
ATZ Disable.
0 = ATZ functions normally.
1 = Disable ATZ command.
FSK Data Processing.
0 = FSK data processing stops when carrier is lost.
1 = FSK data processing continued for 2 bytes after carrier is lost.
D9
D9
D8
Rev. 1.1
D8
D7
b
D7
.
Function
Function
D6
D6
D5
D5
RIGPO
D4
R
D4
D3
D3
D2
D2
ATZD
D1
R/W
D1
RIGPOEN
R/W
D0
FDP
R/W
D0
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