si2439-a-gm Silicon Laboratories, si2439-a-gm Datasheet - Page 32
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si2439-a-gm
Manufacturer Part Number
si2439-a-gm
Description
V.92 And V.34 Isomodem With Global Daa
Manufacturer
Silicon Laboratories
Datasheet
1.SI2439-A-GM.pdf
(70 pages)
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Si2494/39
32
Command
+FRM = X
+FTM = X
Table 10. Basic AT Command Set (Command Defaults in Bold) (Continued)
Class 1 Receive Carrier for V.29 fast connect.
X
2
95
96
Class 1 Transmit Carrier for V.29 fast connect.
X
2
53
54
95
96
Mode
Transmit V.21 (980 Hz) tone for longer than 100 ms, then send answer tone
V.29 short synchronous.
V.29 full synchronous.
Mode
Transmit V.21 (980 Hz) tone.
Same as &T4, but transmit V.29 7200 bps. Data pattern set by S40 register. AT +
Same as &T4, but transmit V.29 9600 bps. Data pattern set by S40 register. AT +
V.29 short synchronous.
V.29 full synchronous.
FCLASS = 0 must be sent to restore the ISOmodem
test.
(2100/2225 Hz) for 200 ms.
FCLASS = 0 must be sent to restore the ISOmodem to normal operation after test.
Rev. 1.0
Action
®
to normal operation after
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