XRT72L52 Datasheet, PDF (165/480 Pages) Exar Corporation – TWO CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER

áç
TWO CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
PRELIMINARY
XRT72L52
REV. P1.1.3
FIGURE 43. A SIMPLE ILLUSTRATION OF THE TRANSMIT PAYLOAD DATA INPUT INTERFACE BLOCK
TxOH_Ind
TxSer
TxNib[3:0]
TxInClk
TxNibClk
TxFrame
TxFrameRef
TTrraannsmsmititPPaayyloloaadd
DDaatataInInppuut _t
InInteterrfafacceeBBlolocckk
To Transmit DS3 Framer Block
Each of the input and output pins of the Transmit Pay-
load Data Input Interface are listed in Table 19 and
described below. The exact role that each of these
inputs and output pins assume, for a variety of operat-
ing scenarios, are described throughout this section.
146