Specifications

Si2457/Si2434/Si2415
Rev. 0.91 47
Bit-Mapped U-Register Detail (defaults in bold)
Reset settings = 0x0000
U4D MOD1
Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Name
TOCT NHFP NHFD CLPD CCAD FTP SPDM GT18 GT55 CTE
Type
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Bit Name Function
15 Reserved Read returns zero.
14 TOCT Turn Off Calling Tone.
0=Disable.
1 = Enable.
13 Reserved Read returns zero.
12 NHFP No Hook Flash Pulse.
0=Disable.
1 = Enable.
11 NHFD No Hook Flash Dial.
0=Disable.
1 = Enable.
10 CLPD Check Loop Current Before Dialing.
0 = Ignore.
1=Check.
9 Reserved Read returns zero.
8FTPForce Tone or Pulse.
0=Disable.
1 = Enable.
7SPDMSkip Pulse Dial Modifier.
0=No.
1=Yes.
6 Reserved Read returns zero.
5GT181800 Hz Guard Tone Enable.
0=Disable.
1 = Enable.
4GT55550 Hz Guard Tone Enable.
0=Disable.
1 = Enable.
3CTECalling Tone Enable.
0=Disable.
1 = Enable.
2:0 Reserved Read returns zero.