XRT72L50 Datasheet, PDF (383/471 Pages) Exar Corporation – SINGLE CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER

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XRT72L50
SINGLE CHANNEL DS3/E3 FRAMER WITH HDLC CONTROLLER
REV. 1.2.1
TABLE 72: THE RELATIONSHIP BETWEEN THE NUMBER OF TXOHENABLE PULSES (SINCE THE LAST OCCURRENCE OF
THE TXOHFRAME PULSE) TO THE E3 OVERHEAD BIT, THAT IS BEING PROCESSED BY THE XRT72L50
NUMBER OF TXOHENABLE PULSES
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
THE OVERHEAD BIT EXPECTED BY THE CAN THIS OVERHEAD BIT BE ACCEPTED BY
XRT72L50
THE XRT72L50?
FA1 Byte - Bit 2
No
FA1 Byte - Bit 1
No
FA1 Byte - Bit 0
No
FA2 Byte - Bit 7
No
FA2 Byte - Bit 6
No
FA2 Byte - Bit 5
No
FA2 Byte - Bit 4
No
FA2 Byte - Bit 3
No
FA2 Byte - Bit 2
No
FA2 Byte - Bit 1
No
FA2 Byte - Bit 0
No
EM Byte - Bit 7
No
EM Byte - Bit 6
No
EM Byte - Bit 5
No
EM Byte - Bit 4
No
EM Byte - Bit 3
No
EM Byte - Bit 2
No
EM Byte - Bit 1
No
EM Byte - Bit 0
No
TR Byte - Bit 7
Yes
TR Byte - Bit 6
Yes
TR Byte - Bit 5
Yes
TR Byte - Bit 4
Yes
TR Byte - Bit 3
Yes
TR Byte - Bit 2
Yes
TR Byte - Bit 1
Yes
TR Byte - Bit 0
Yes
MA Byte - Bit 7 (FERF)
Yes
MA Byte - Bit 6 (FEBE)
Yes
MA Byte - Bit 5
Yes
MA Byte - Bit 4
Yes
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