Exar Corporation XRT95L51
The XRT95L51 is an ATM/PPP physical layer processor with integrated SONET OC-48/STM-16 framing controller. The XRT95L51 contains an integral SONET framer which provides framing and error accumulation in accordance with ANSI/ITU-T specifications. The configuration of this device is done through internal registers accessible via 8-bit parallel, memory mapped, microprocessor interface.| Part No. | XRT95L51 |
|---|---|
| Datasheet | XRT95L51 Download |
| Manufacturer |  Exar Corporation |
| Description | OC-48 ATM UNI/POS/MAPPER IC |
| Buy | Stock & Price |
GENERAL DESCRIPTION
ATM direct mapping and cell delineation are supported, as are PPP mapping and frame processing. The XRT95L51 provides full section, line and path overhead processing and supports scrambling/descrambling, alarm signal insertion/detection and bit interleaved parity processing. The SONET/SDH transmit and receive blocks are used to transmit/receive an OC-48c/STM-16c signal or compose and decompose four OC-12/12c signals.The blocks operate at a peak internal clock speed of 77 MHz and support 32-bit internal data paths. The transmit and receive blocks are compliant with both SONET and SDH standards.APPLICATIONS
● Digital Cross Connect Systems● ATM Switches
● Routers
● SONET/SDH Add Drop Multiplexers
● Multiplexers
FEATURES
● Single chip for ATM UNI and Packet over SONET.● Generates and terminates SONET section, line and path layers.
● Provides SONET frame scrambling and descrambling.
● Provides 32-bit data UTOPIA level II and III multiPHY interface and POS-PHY interface.
