XRT7250 Datasheet, PDF (49/463 Pages) Exar Corporation – DS3/E3 FRAMER IC

XRT7250 DS3/E3 FRAMER IC
REV. 1.1.1
FIGURE 11. RECEIVE PAYLOAD DATA OUTPUT INTERFACE TIMING
áç
X R T 7 2 5 0 R e c e iv e P a y lo a d D a ta I/F S ig n a ls
t5 0
R x C lk
R xSer
R xFram e
R x O H _ In d
P a y lo a d [4 7 0 2 ]
P a y lo a d [4 7 0 3 ]
t5 1
t5 2
X -B it
P a y lo a d [0 ]
FIGURE 12. RECEIVE PAYLOAD DATA OUTPUT INTERFACE TIMING (NIBBLE MODE OPERATION)
XRT7250 Receive Payload Data I/F Signals
RxOutClk
RxClk
RxNib[3:0]
RxFrame
t54
Nibble [0]
Nibble [1]
DS3 Frame Number N DS3 Frame Number N + 1
t53
Recommended Sampling Edge of Terminal
Equipment
30