SI2404 SILABS [Silicon Laboratories], SI2404 Datasheet - Page 48

• Manufacturer Part Number: SI2404
• Description: V.90, V.34, V.32BIS, V.22BIS ISOMODEM WITH GLOBAL DAA
• Manufacturer: SILABS [Silicon Laboratories]

Si2457/34/15/04
6.1. Bit-Mapped U-Register Detail (defaults in bold)
U4D MOD1
Reset settings = 0x0000
48
Name
Type
Bit
2:0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
D15
Reserved Read returns zero.
Reserved Read returns zero.
Reserved Read returns zero.
Reserved Read returns zero.
Reserved Read returns zero.
SPDM
NHFD
Name
TOCT
NHFP
CLPD
GT18
GT55
CTE
FTP
TOCT
D14
R/W
Turn Off Calling Tone.
0 = Disable.
1 = Enable.
No Hook Flash Pulse.
0 = Disable.
1 = Enable.
No Hook Flash Dial.
0 = Disable.
1 = Enable.
Check Loop Current Before Dialing.
0 = Ignore.
1 = Check.
Force Tone or Pulse.
0 = Disable.
1 = Enable.
Skip Pulse Dial Modifier.
0 = No.
1 = Yes.
1800 Hz Guard Tone Enable.
0 = Disable.
1 = Enable.
550 Hz Guard Tone Enable.
0 = Disable.
1 = Enable.
Calling Tone Enable.
0 = Disable.
1 = Enable.
D13 D12
NHFP NHFD
R/W
D11
R/W
CLPD
D10
R/W
D9
Rev. 1.0
FTP SPDM
D8
R/W
Function
D7
R/W
D6
GT18
R/W
D5
GT55
D4
R/W
CTE
D3
R/W
D2
D1
D0