SI2457-C-GT Silicon Laboratories Inc, SI2457-C-GT Datasheet - Page 59
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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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U78 GEN3
Reset settings = 0x00XX
15:14
Name
13:8
Type
Bit
7:0
Bit
Reserved Read returns zero.
D15
IB[1:0]
IS[7:0]
Name
IB[1:0]
R/W
D14
Intrusion Blocking.
Defines the method used to block the off-hook intrusion algorithm from operation after dialing
has begun.
0 = No intrusion blocking.
1 = Intrusion disabled from start of dial to end of dial.
2 = Intrusion disabled from start of dial to IS register time-out.
3 = Intrusion disabled from start of dial to connect (“CONNECT XXX”, “NO DIALTONE”, or
“NO CARRIER”).
Intrusion Suspend (500 ms units).
When IB = 2, this register sets the length of time from when dialing begins that the off-hook
intrusion algorithm is blocked (suspended) (default = 00000000
D13
D12
D11
D10
D9
Rev. 1.1
D8
Function
D7
D6
D5
Si2457/34/15/04
D4
b
IS[7:0]
).
R/W
D3
D2
D1
D0
59
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