SI2107 SILABS [Silicon Laboratories], SI2107 Datasheet - Page 67

• Manufacturer Part Number: SI2107
• Description: SATELLITE RECEIVER FOR DVB-S/DSS
• Manufacturer: SILABS [Silicon Laboratories]

Register C0h. LNB Control 1
Name
Bit
2:0
Bit
7
6
5
4
3
LNBS
D7
MSGL[2:0]
LNBCT
MMSG
Name
LNBS
LNBV
LNBB
LNBV
D6
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 = 11/13 V (Japan/R.O.W.) (default)
1 = 15/18 V (Japan/R.O.W.)
Selection between Japan and R.O.W. LNB supply levels via register
LNBLVL(CEh[1])
Note: Available on Si2108/10 only.
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
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:
LNBCT
D5
1. When message length is set to one byte, tone burst modulation is used.
2. Not available in manual LNB mode.
Preliminary Rev. 0.7
tone burst implementation in step-by-step LNB mode.
When message length is set to two or more bytes, DiSEqC modulation is
used.
LNBB
D4
MMSG
D3
Function
Si2107/08/09/10
D2
MSGL[2:0]
D1
D0
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