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CX28398 Dataheets PDF



Part Number CX28398
Manufacturers Conexant Systems
Logo Conexant Systems
Description (CX28394 - CX28398) Quad/x16/Octal?T1/E1/J1 Framers
Datasheet CX28398 DatasheetCX28398 Datasheet (PDF)

CX28394/28395/28398 Quad/x16/Octal—T1/E1/J1 Framers The CX28394/28395/28398 is a family of multiple framers for T1/E1/J1 and Integrated Service Digital Network (ISDN) primary rate interfaces operating at 1.544 Mbps or 2.048 Mbps. All framers are totally independent, and each combines a sophisticated framing synchronizer and transmit/receive slip buffers. Operations are controlled through a series of memory-mapped registers accessible via a parallel microprocessor port. Extensive register support.

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CX28394/28395/28398 Quad/x16/Octal—T1/E1/J1 Framers The CX28394/28395/28398 is a family of multiple framers for T1/E1/J1 and Integrated Service Digital Network (ISDN) primary rate interfaces operating at 1.544 Mbps or 2.048 Mbps. All framers are totally independent, and each combines a sophisticated framing synchronizer and transmit/receive slip buffers. Operations are controlled through a series of memory-mapped registers accessible via a parallel microprocessor port. Extensive register support is provided for alarm and error monitoring, signaling supervision (including ISDN D-channel/SS7 process), per-channel trunk conditioning, and Facility Data Link (FDL) maintenance. A flexible serial Time Division Multiplexed (TDM) system interface that supports bus rates from 1.536 to 8.192 MHz is featured. Extensive test and diagnostic functions include a full set of loopbacks, Pseudo Random Bit Sequence (PRBS) test pattern generation, Bit Error Rate (BER) meter, and forced error insertion. Distinguishing Features • • • • Up to 16 T1/E1/J1 Framers in one package Extensive support of various protocols T1: SF, ESF, SLC®96, T1DM, TTC JT(J1) E1: PCM-30, G.704, G.706, G.732, ISDN primary rate (ETS300 011, INS 500) Extracts and inserts signaling bits Dual HDLC controllers per framer for data link and LAPD/SS7 signaling Two-frame transmit and receive PCM slip buffers Separate or multiplexed system bus interfaces Parallel 8-bit microprocessor port supports Intel or Motorola buses BERT generation and counting B8ZS/HDB3/Bit 7 zero suppression (CX28394 and CX28398 only) Operates from a single +3.3 Vdc ± 5% power supply Low-power CMOS technology • • • Functional Block Diagram • Receive Dual Rail or NRZ RX Slip Buffer Receive System Bus • • • • • ZCS* Decode T1/E1 Receive Framer Receive Dual Rail or NRZ ZCS* Encode Overhead Insertion TX Slip Buffer T1/E1 Transmit Framer Transmit System Bus Applications • Multiline T1/E1 Channel Service Unit/Data Service Unit (CSU/DSU) Digital Access Cross-Connect System (DACS) T1/E1 Multiplexer (MUX) PBXs and PCM channel bank ISDN Primary Rate Access (PRA) Frame Relay Switches and Access Devices (FRADS) SONET/SDH add/drop multiplexers T3/E3 channelized access concentrators Data Link Controllers DL1+DL2 • • • • • • • . . . Framer #1 External Data Link DL3* Framer #N Control/Status Registers Framer #N 8394-8-5_019 JTAG Test Port * CX28394 and CX28398 only. Motorola/Intel Processor Bus CX28394 - 4 Frames CX28398 - 8 Frames CX28395 - 16 Frames Data Sheet 100054E June 2000 CX28398EVM—Evaluation Module, Octal T1/E1 ISDN PRI Board T1 or E1 Connection at DSX Levels Quad T1/E1 LIU (CX28380) Address Bus 12 Microprocessor Data Bus 8 Quad T1/E1 LIU (CX28380) CX28398 (Octal T1/E1 Framer) Local PCM Highway (i.e., 2 @ 8192 kbps) 8394-8-5_012 © 1999, 2000, Conexant Systems, Inc. All Rights Reserved. Information in this document is provided in connection with Conexant Systems, Inc. (“Conexant”) products. These materials ar.


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