SI2107-X-FM SILABS [Silicon Laboratories], SI2107-X-FM Datasheet - Page 23

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

The device has one output pin (pin 30), which can be
configured as either a receiver lock indicator, general
purpose output, or interrupt output, using the pin select
register, PSEL. The receiver lock indicator provides a
signal output for register bit RCVL. The general purpose
output reflects the polarity of register bit GPO. The
interrupt output is discussed further in “6.2. Interrupts”.
The user can configure the device such that
components of the channel decoder are bypassed. This
is controlled by the energy-dispersal descrambler
bypass bit, DS_BP, the Reed-Solomon decoder bypass
TS_SYNC active high
TS_SYNC, active low/1-bit wide
TS_CLK, rising edge
TS_ERR active high
TS_VAL active high
TS_CLK falling edge/ gapped
gapped
data, parity
start, active high
fail, active high
clk, falling edge+
valid, active high
Gapped Parallel Data Mode
TS_DATA[7:0]
Continuous Parallel Data Mode
TS_SYNC active high
TS_CLK rising edge
TS_ERR active high
TS_ERR, active low
TS_VAL active high
TS_VAL active low
Continuous Serial Data Mode
Gapped Serial Data Mode
TS_DATA[0]
TS_DATA[0]
TS1 (sync)
TS1 (sync)
TS1 (sync)
TS1 (sync)
Figure 12. MPEG-TS Parallel Mode
Figure 13. MPEG-TS Serial Modes
TS2
TS2
Preliminary Rev. 0.81
TS2
TS2
bit, RS_BP, and the convolutional de-interleaver bypass
bit, DI_BP. The use of these bypass options is defined
for the implementation of a BER test on a known
modulated PRBS data sequence as explained later in
"6.5. Channel Decoder" on page 27.
6.2. Interrupts
The device is equipped with several sticky interrupt bits
to provide precise event tracking and monitoring.
Next to interrupts being signaled via the I
map, the user can program one of the device terminals
TS188
TS188
TS188
TS188
RS1
RS1
RS1
RS1
Si2107/08/09/10
TS1 (sync)
TS1 (sync)
TS1 (sync)
TS1 (sync)
TS2
TS2
TS2
TS2
2
C register
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