S5H1420 Datasheet, PDF (22/31 Pages) Samsung semiconductor – Channel Decoder for DVB-S/DSS

S5H1420
DBS Channel Decoder for DVB-S/DSS
Viterbi status registers (Address: 0x32)
Addr.
RegName
(Reset val)
Signal name
Width Property Description
Spectrum information monitoring
VIT_SPEC_STS [3]
R _{[1] Inv spectrum}
[0] Not inv spectrum
Viterbi decoder current code rate
0x32
VIT10
(0x00)
[0] R=1/2
[1] R=2/3
VIT_CR
[2:0]
R [2] R=3/4
[3] R=5/6
[4] R=6/7
[5] R=7/8
SYNC control register (Address: 0x35)
Addr.
RegName
(Reset val)
Signal name
Width Property Description
0x35
Sync01
(0x33)
SYNC_MISS_TH [7:4]
SYNC_HIT_TH [3:0]
R/W Sync byte detector’s miss threshold
Sync byte detector’s hit threshold
R/W
*Note: This value should be greater than 2
SYNC status register (Address: 0x36)
Addr.
RegName
(Reset val)
Signal name
BYTE_SYNC
0x36
Sync02
(0x00)


VIT_SYNC
Width Property Description
[1] Acquire byte sync
[5]
R
[0] Not acquire byte sync
[4:1]
R Reserved
[1] Viterbi decoder is in sync
[0]
R
[0] Viterbi decoder is out of sync
Samsung Electronics Co, Ltd. Proprietary Information
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