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XRT7250 Datasheet(PDF) 409 Page - Exar Corporation

Part # XRT7250
Description  DS3/E3 FRAMER IC
PDF  463 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT7250 Datasheet(HTML) 409 Page - Exar Corporation

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XRT7250
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DS3/E3 FRAMER IC
REV. 1.1.1
390
6.3.2
The Receive E3 Framer Block
The Receive E3 Framer block accepts decoded E3
data from the Receive E3 LIU Interface block, and
routes data to the following destinations.
• The Receive Payload Data Output Interface Block
• The Receive Overhead Data Output Interface
Block.
• The Receive E3 HDLC Controller Block
Figure 193 presents a simple illustration of the Re-
ceive E3 Framer block, along with the associated
paths to the other functional blocks within the Framer
chip.
FIGURE 191. WAVEFORM/TIMING RELATIONSHIP BETWEEN RXLINECLK, RXPOS AND RXNEG - WHEN RXPOS AND
RXNEG ARE TO BE SAMPLED ON THE RISING EDGE OF RXLINECLK
RxLineClk
RxPOS
RxNEG
t38
t39
t42
FIGURE 192. WAVEFORM/TIMING RELATIONSHIP BETWEEN RXLINECLK, RXPOS AND RXNEG - WHEN RXPOS AND
RXNEG ARE TO BE SAMPLED ON THE FALLING EDGE OF RXLINECLK
RxLineClk
RxPOS
RxNEG
t40
t41



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