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CX28395 датащи(PDF) 1 Page - Synaptics Incorporated. |
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CX28395 датащи(HTML) 1 Page - Synaptics Incorporated. |
1 / 305 page Data Sheet 100054E June 2000 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. Functional Block Diagram 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 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 ZCS* Decode Receive Dual Rail or NRZ Receive Dual Rail or NRZ TX Slip Buffer RX Slip Buffer T1/E1 Receive Framer ZCS* Encode T1/E1 Transmit Framer Overhead Insertion Control/Status Registers JTAG Data Link Controllers DL1+DL2 Motorola/Intel Processor Bus Test Port External Data Link DL3* Receive System Bus Transmit System Bus Framer #1 Framer #N Framer #N CX28394 - 4 Frames CX28398 - 8 Frames CX28395 - 16 Frames .. . * CX28394 and CX28398 only. |
Аналогичный номер детали - CX28395 |
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Аналогичное описание - CX28395 |
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