si2401 Silicon Laboratories, si2401 Datasheet - Page 57

• Manufacturer Part Number: si2401
• Description: V.22bis Isomodem With Integrated Global Daa
• Manufacturer: Silicon Laboratories

SE6 (DSP3). (SE8 = 0x02) Write Only Definition
Reset settings = 0000_0000 (0x00)
Bit
Name
Type
7
6
5
4
3
2
1
0
Bit
Reserved
USEN2
USEN1
DTMFE
Name
CPSQ
CPCD
ANSE
V23E
CPSQ
D7
W
Call Progress Squaring Filter.
0 = Disable.
1 = Enables a squaring function on the output of filter B before the input to A (cascade
only).
Call Progress Cascade Disable.
0 = Call progress filter B output is input into call progress filter A. Output from fil-
ter A is used in the detector.
1 = Cascade disabled. Two independent fourth order filters available (A and B). The
largest output of the two is used in the detector.
User Tone Reporting Enable 2.
0 = Disable.
1 = Enable the reporting of user defined frequency tones 3 and 4 through TONE.
User Tone Reporting Enable 1.
0 = Disable.
1 = Enable the reporting of user defined frequency tones 1 and 2.
V.23 Tone Reporting Enable.
0 = Disable.
1 = Enable the reporting of V.23 tones, 390 Hz and 1300 Hz.
Answering Tone Reporting Enable.
0 = Disable.
1 = Enable the reporting of answer tones.
DTMF Tone Reporting Enable.
0 = Disable.
1 = Enable the reporting of DTMF tones.
CPCD
D6
W
D5
USEN2
Rev. 1.0
D4
W
Function
USEN1
D3
W
V23E
D2
W
ANSE
D1
W
Si2401
DTMFE
D0
W
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