SI2107-X-FM SILABS [Silicon Laboratories], SI2107-X-FM Datasheet - Page 80

• Manufacturer Part Number: SI2107-X-FM
• Description: SATELLITE RECEIVER FOR DVB-S/DSS WITH QUICKLOCK AND QUICKSCAN
• Manufacturer: SILABS [Silicon Laboratories]

Si2107/08/09/10
Register C0h. LNB Control 1
80
Name
Name
Part
Part
Bit
Bit
2:0
7
6
5
4
3
MSGL[2:0]
LNBCT
MMSG
Name
LNBS
LNBS
LNBS
LNBV
LNBB
D7
LNB Start.
Writing a 1 to this bit initiates an LNB signaling sequence. This bit is automatically
cleared to zero when the sequence is complete.
Note: Not available in manual LNB mode.
LNB DC Voltage Selection.
0 = 13 V (default)
1 = 18 V
Continuous Tone Selection.
0 = Normal operation (default)
1 = Send continuous tone
Note: Not available in manual LNB mode.
Tone Burst Selection.
0 = Unmodulated tone burst (default)
1 = Modulated tone burst
Note: For use in automatic LNB mode only. Use a 1-byte DiSEqC message for tone burst
More Messages.
0 = Normal operation (default)
1 = Indicates more DiSEqC messages to be sent
This bit is automatically cleared to zero when the sequence is complete.
Note: For use in automatic LNB mode only.
Message Length.
000 = No message (default)
001 = One byte
010 = Two bytes
011 = Three bytes
100 = Four bytes
101 = Five bytes
110 = Six bytes
111 = Longer than six bytes.
Notes:
1. When message length is set to one byte, tone burst modulation is used. When message
2. Not available in manual LNB mode.
LNBV
D6
0
implementation in step-by-step LNB mode.
length is set to two or more bytes, DiSEqC modulation is used.
LNBCT
LNBCT
D5
Preliminary Rev. 0.81
LNBB
LNBB
D4
Si2108/10
Si2107/9
Function
MMSG
MMSG
D3
D2
MSGL[2:0]
MSGL[2:0]
D1
D0