SI2107-X-FM SILABS [Silicon Laboratories], SI2107-X-FM Datasheet - Page 75

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

Register A2h. Viterbi Search Control 2
Register A3h. Viterbi Search Status
Name
Name
Bit
Bit
7:4
1:0
Bit
Bit
7:5
4:2
3
2
1
0
D7
D7
0
VTRS[2:0]
VTERW[1:0]
Reserved
Reserved
VTIQS
VTRS[2:0]
Name
VTPS
VTERM
VTERS
Name
D6
D6
0
D5
D5
Viterbi Current Code Rate Status.
000 = 1/2 code rate (default)
001 = 2/3 code rate
010 = 3/4 code rate
011 = 5/6 code rate
100 = 6/7 code rate
101 = 7/8 code rate
11x = Undefined
Program as shown above.
Viterbi Constellation Rotation Phase Status.
0 = Not rotated (default)
1 = Rotated by 90 degrees
Viterbi I/Q Swap Status.
0 = Not swapped (default)
1 = Swapped
0
Viterbi BER Measurement Start
Writing a 1 to this bit initiates the Viterbi BER measurement.
Viterbi BER Measurement Mode
0 = finite window (default)
1 = infinite window
Viterbi BER Measurement Window
00 = 2
01 = 2
10 = 2
11 = 2
Program as shown above.
Preliminary Rev. 0.81
25
13
17
21
D4
0
bits
D4
bits (default)
bits
bits
0
VTERS
D3
0
D3
Function
Function
Si2107/08/09/10
VTERM
D2
0
D2
VTPS
D1
D1
VTERW[1:0]
VTIQS
D0
D0
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