XR72L52 Datasheet, PDF (363/480 Pages) Exar Corporation – TWO CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER

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TWO CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
FIGURE 144. THE TRANSMIT PAYLOAD DATA INPUT INTERFACE BLOCK
TxOH_Ind
TxSer
TxNib[3:0]
TxInClk
TxNibClk
TxNibFrame
TxFrame
TxFrameRef
Transmit
Payload Data
Input Interface
Block
To Transmit E3
Framer Block
XRT72L52
REV. 1.0.1
Each of the input and output pins of the Transmit Payload Data Input Interface are listed in Table 67 and de-
scribed below. The exact role that each of these inputs and output pins assume, for a variety of operating sce-
narios are described throughout this section.
347