XRT79L71 Datasheet, PDF (68/441 Pages) Exar Corporation – 1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC

XRT79L71
REV. P1.0.3
PRELIMINARY
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1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
FIGURE 17. TIMING DIAGRAM FOR THE TRANSMIT OVERHEAD DATA INPUT INTERFACE (METHOD 1 ACCESS)
t21
t22 t23
TxOHClk
TxOHFrame
TxOHIns
TxOH
X bit = 0
Remaining Overhead Bits with DS3 Frame
X bit = 0
t24 t25
FIGURE 18. TIMING DIAGRAM FOR THE TRANSMIT OVERHEAD DATA INPUT INTERFACE (METHOD 2 ACCESS)
TxInClk
t26 t27
TxOHFrame
TxOHEnable Pulse # 8
TxOHEnable
TxOHIns
TxOH
t29A
X bit = 0
t28 t29
XRT79L71 samples TxOH here.
X bit = 0
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