Datacom Systems D56 Spezifikationen PDF herunterladen (Seite 50)

Si5040

50 Rev. 1.3

Reset settings = 0001 0101

BitD7D6D5 D4 D3 D2D1D0

Name lolOnLOS ltrOnLOS CDRLTDATA uselolMode lolMode ltr rxRefclkEn

Type R R/W R/W R/W R/W R/W R/W R/W

Bit Name Function

7 Reserved Read returns zero.

6 lolOnLOS Loss of Lock on Loss of Signal.

0 = Normal LOL operation.

1 = Assert loss of lock on a loss of signal condition.

5ltrOnLOSLock to Reference on Loss of Signal.

0 = Normal LTR operation.

1 = Assert lock to reference on a loss of signal condition.

4 CDRLTDATA CDR Lock Acquisition Options when Lock to Reference is enabled.

0 = CDR phase locks to reference clock.

1 = CDR continues to attempt to lock to data.

3 uselolMode Loss of Lock Mode Overwrite.

0 = Frequency LOL if RX ltr = 1 and SQM LOL if RX ltr = 0. The LOL mode can be read

from the lolmode bit 2.

1 = LOL is based on lolMode bit2.

2 lolMode Loss of Lock Mode (This bit is only used if bit3 = 1).

0 = LOL bases on frequency difference between the reference clock and received data.

1 = LOL bases on SQM.

1ltrLock to Reference.

0 = Normal operation.

1 = RX CMU locked to reference clock.

0 rxRefclkEn Receiver Reference Clock Enable.

0 = Reference clock not used by the receiver (incorrect rate).

1 = Reference clock applied to the receiver.

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 107 108

Keine Kommentare

Datacom Systems D56 Spezifikationen Seite 50