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XRT72L71 Datasheet Ds3 Atm Uni/clear Channel Framer

Manufacturer: Exar (now MaxLinear)

Overview: .. áç AUGUST 2002 XRT72L71 DS3 ATM UNI/CLEAR CHANNEL FRAMER REV. 1.1.

General Description

The XRT72L71 DS3 ATM User Network Interface (UNI)/Clear-Channel Framer is designed to function as either a DS3 ATM UNI or Clear channel framer.

For ATM UNI applications, this device provides the ATM Physical Layer (Physical Medium Dependent and Transmission Convergence sub-layers) interface for both the public and private networks at DS3 rates.

For Clear-Channel framer applications, this device supports the transmission and reception of “user data” via the DS3 payload bits.

Key Features

  • Compliant with UTOPIA Level 1 and 2 with 8 or 16 Bit Interface Specification and supports UTOPIA Bus speeds of up to 50 MHz.
  • Contains on-chip 16 cell FIFO in both the Transmit (TxFIFO) and Receive Directions (RxFIFO).
  • Contains on-chip 54 byte Transmit OAM Cell buffer and a 108 byte Receive OAM cell buffer, for transmission, reception and processing of OAM cells.
  • Supports PLCP or ATM Direct Mapping modes.
  • Supports M13 and C-Bit Parity Framing Formats.

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