Datacom Systems D56 Especificaciones Pagina 27

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Si5040
Rev. 1.3 27
Figure 16. TX LOS and LOL Block Diagram
LOS
(Bit 5, Register 137 or
Bit 0, Register 139)
Frequency
Offset
Monitor
Tx Recovered Clock
Reference Clock
LOL
(Bit 4, Register 137)
Signal
Quality
Monitor
sqmLosEn
(Bit 3, Register 138, Default= 0)
sqmLOS
(Bit 4, Register 139)
TxSqmThresh[5:0] (Bit 7:2, Register 154)
TxSqmDeassertThresh[5:0] (Bit 5:0, Register 155)
TxSqmValue[5:0]
(Bit 5:0, Register 153)
DLOS
Monitor
dLosEn[1:0]
(Bit 2:1, Register 138)
dLOS
(Bit 2, Register 139)
TxdLosAssertThresh[7:0] (Bit 7:0, Register 145)
TxdLosClearThresh (Bit 7:0, Register 146)
EN
EN
sqmAlarm
(Bit 0, Register 137)
1
00: Disabled (Default)
01: Based on consecutive number of 1s
01: Based on consecutive number of 0s
01: Based on either consecutive number of 1s or 0s
useLolMod
(Bit 3, Register 135, Default= 0)
lolMode
(Bit 2, Register 135)
1 (Default)
0
Select
SqmLol
FreqLol
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