XR72L52 Datasheet, PDF (171/480 Pages) Exar Corporation – TWO CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER

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TWO CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
XRT72L52
REV. 1.0.1
TABLE 18: THE RELATIONSHIP BETWEEN THE NUMBER OF RISING CLOCK EDGES IN TXOHCLK SINCE TXOHFRAME
WAS LAST SAMPLED "HIGH" TO THE DS3 OVERHEAD BIT THAT IS BEING PROCESSED
NUMBER OF RISING CLOCK EDGES IN
TXOHCLK
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
THE OVERHEAD BIT EXPECTED BY THE
XRT72L52
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
CAN THIS OVERHEAD BIT BE ACCEPTED
BY THE XRT72L52?
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
No
No
Yes
No
Yes
No
Yes
No
No
No
Yes
No
Yes
No
Yes
No
No
No
Yes
No
Yes
No
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