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UPD98405 Datasheet 155m Atm Integrated Sar Controller

Manufacturer: NEC (now Renesas Electronics)

Overview: DATA SHEET MOS INTEGRATED CIRCUIT µPD98405 155M ATM INTEGRATED SAR.

General Description

The µPD98405 (NEASCOT-S20TM) is a high-performance SAR chip that performs segmentation and reassembly of ATM cells.

It has a PCI bus interface, a SONET/SDH 155-Mbps framer, and a clock recovery circuit and supports an ABR function in hardware.

The µPD98405 conforms to ATM Forum and has the functions of the AAL-5 SAR sublayer, ATM layer, and TC sublayer.

Key Features

  • Conforms to ATM Forum.
  • Host bus interface supporting PCI bus/generic bus. - PCI interface (5/3.3 V, 32/64 bits, 33 MHz): Conforms to PCI Specification 2.1 - Generic bus interface (5/3.3 V, 32 bits, 33 MHz).
  • AAL-5 SAR sublayer, ATM layer, and TC sublayer functions.
  • Hardware support of AAL-5 processing.
  • Software support of non-AAL-5 traffic.
  • SONET STS-3c/SDH STM-1 155-Mbps framer function.
  • Clock recovery/clock synthesizer function.

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