Figure 15. RX LOS and LOL Block Diagram
LOS
(Bit 5, Register 9,
Bit 0, Register 11 or Pin 3)
Frequency
Offset
Monitor
SqmLol
Reference Clock
LOL
(Bit 4, Register 9 or Pin 2)
Peak-to-
Peak
Monitor
aLosEn
(Bit 0, Register 10, Default= 1)
aLOS
(Bit 1, Register 11)
aLOSThresh (Bit 1:0, Register 13 and Bit 7:0, Register 12)
aLOSHyst[3:0] (Bit 7:4, Register 13)
Signal
Quality
Monitor
sqmLosEn
(Bit 3, Register 10, Default= 0)
sqmLOS
(Bit 4, Register 11)
RxSqmThresh[5:0] (Bit 7:2, Register 26)
RxSqmDeassertThresh[5:0] (Bit 5:0, Register 27)
RxSqmValue[5:0]
(Bit 5:0, Register 25)
DLOS
Monitor
dLosEn[1:0]
(Bit 2:1, Register 10)
dLOS
(Bit 2, Register 11)
RxdLosAssertThresh[7:0] (Bit 7:0, Register 17)
RxdLosClearThresh (Bit 7:0, Register 18)
EN
EN
sqmAlarm
(Bit 0, Register 9)
1
lolOnLos
(Bit 6, Register 7, Default= 0)
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 7, Default= 0)
lolMode
(Bit 2, Register 7)
1 (Default)
0
Select
FreqLol
Rx Recovered Clock
Comentários a estes Manuais