XRT72L13 Datasheet, PDF (244/370 Pages) Exar Corporation – M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC

XRT72L13
M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC
REV. P1.0.6
áç
PRELIMINARY
FIGURE 61. A SIMPLE ILLUSTRATION OF THE TRANSMIT SECTION, WITHIN THE XRT72L13; WHEN IT HAS BEEN CON-
FIGURED TO OPERATE IN THE CLEAR-CHANNEL FRAMER MODE
TxOHFrame
TxOHEnable
TxOH
TxOHClk
TxOHIns
TxOHInd
TxSer
TxNib[3:0]
TxInClk
TxNibClk
TxFrame
Transmit Overhead
Input
Interface Block
Transmit
Payload Data
Input
Interface Block
Transmit DS3/E3
Framer Block
Transmit LIU
Interface
Block
TxPOS
TxNEG
TxLineClk
From Microprocessor
Interface Block
TTxxDDSS33HHDDLLCC
CConontrtorlollelre/rB/Buufffefrer
Each of these functional blocks will be discussed in
detail in this document.
4.2.1 The "Transmit Payload Data Input Inter-
face" Block
Figure 62 presents a simple illustration of the "Trans-
mit Payload Data Input Interface" block.
232