SI2493-C-GT Silicon Laboratories Inc, SI2493-C-GT Datasheet - Page 68
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SI2493-C-GT
Manufacturer Part Number
SI2493-C-GT
Description
IC ISOMODEM SYSTEM-SIDE 24TSSOP
Manufacturer
Silicon Laboratories Inc
Datasheet
1.SI2493-C-FS.pdf
(230 pages)
Specifications of SI2493-C-GT
Mfg Application Notes
SI2493/57/34/15/04, Appl Note AN93
Data Format
V.21, V.22, V.23, V.29, V.32, V.34, V.90, V.92, Bell 103, Bell 212A
Baud Rates
56k
Interface
Parallel
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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AN93
68
S-Register
(Decimal)
41
42
43
44
50
51
Dial attempts to blacklist.
Blacklist Timer
V.34 symbol rate - Symbol rate for V.34 when using
the &T4 and &T5 commands.
0 – 2400
1 – 2743
2 – 2800
3 – 3000
4 – 3200
5 – 3429
A valid combination of symbol rate (S41) and data rate
(&G) must be selected.
Symbol Rate
2400
2743
2800
3000
3200
3429
Blacklisting - The Si2493/57/34/15/04 does not dial the
same number more than two times in S44 seconds.
An attempt to dial a third time within S44 seconds
results in a “BLACKLISTED” result code. If the black-
list memory is full, any dial to a new number will result
in a “BLACKLIST FULL” result code. Numbers are
added to the blacklist only if the modem connection
fails. The %B command lists the numbers on the
blacklists.
0 – disabled
1 – enabled
When blacklisting is enabled with S42, this value con-
trols the number of dial attempts that result in a num-
ber being blacklisted.
Period during which blacklisting is active
Minimum on-hook time – Modem remains on-hook for
S50 seconds. Any attempt to go off-hook is delayed
until this timer expires.
Number to start checking for an outsidePBX line.
symbols/second
symbols/second
symbols/second
symbols/second
symbols/second
symbols/second
Table 31. S-Register Descriptions (Continued)
Allowable Data Rates
2400 – 21600
4800 – 26400
4800 – 26400
4800 – 28800
4800 – 31200
4800 – 33600
Function
Definition
Rev. 0.9
0 (disabled)
(Decimal)
Default
180
5
4
3
1
Range
0–255
0–255
0–5
0–1
0–4
0–9
seconds
seconds
Units
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