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XRT7250 Datasheet, PDF (232/463 Pages) Exar Corporation – DS3/E3 FRAMER IC
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DS3/E3 FRAMER IC
XRT7250
REV. 1.1.1
TABLE 44: THE RELATIONSHIP BETWEEN THE NUMBER OF RXOHENABLE OUTPUT PULSES ((SINCE RXOHFRAME
WAS LAST SAMPLED "HIGH") TO THE DS3 OVERHEAD BIT, THAT IS BEING OUTPUT VIA THE RXOH OUTPUT PIN
NUMBER OF RXOHENABLE OUTPUT PULSES
0 (The RxOHEnable and RxOHFrame signals are both sampled "High")
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
THE OVERHEAD BIT BEING OUTPUT BY THE
XRT7250
X
F1
AIC
F0
NA
F0
FEAC
F1
X
F1
UDL
F0
UDL
F0
UDL
F1
P
F1
CP
F0
CP
F0
CP
F1
P
F1
FEBE
F0
FEBE
F0
FEBE
F1
M0
F1
DL
F0
DL
F0
DL
213