XRT74L73 Datasheet, PDF (265/488 Pages) Exar Corporation – 3 CHANNEL, ATM UNI/PPP DS3/E3 FRAMING CONTROLLER

PRELIMINARY
XRT74L73
3 CHANNEL, ATM UNI/PPP DS3/E3 FRAMING CONTROLLER
REV. P1.0.1
TABLE 60: 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
THE OVERHEAD BIT BEING OUTPUT BY THE
XRT74L73
30
FEBE
31
F1
32
M0
33
F1
34
DL
35
F0
36
DL
37
F0
38
DL
39
F1
40
M1
41
F1
42
UDL
43
FO
44
UDL
45
FO
46
UDL
47
F1
48
M0
49
F1
50
UDL
51
F0
52
UDL
53
F0
54
UDL
55
F1
Figure 98 presents the typical behavior of the Re-
ceive Overhead Data Output Interface block, when
Method 2 is being used to sample the incoming DS3
overhead bits.
266