XRT72L56 Datasheet, PDF (480/486 Pages) Exar Corporation – SIX CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER

XRT72L56
SIX CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
REV. P1.1.2
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PRELIMINARY
8.2.1 Operating the Transmit HDLC Controller
Block
Once the user has configured a given channel to op-
erate in the High-Speed HDLC Controller mode, then
certain pins (which have multiple functions) will be
configured to support operation of the Transmit and
Receive HDLC Controller blocks.
The Transmit HDLC Controller block, within each
channel consists of the following pins.
• Snd_Msg_n
• Snd_FCS_n
• TxHDLCClk_n
• TxHDLCDat_n[7:0]
Each of these pins are described below in Table 94 .
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