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UPD98409 Datasheet ATM LIGHT SAR CONTROLLER

Manufacturer: NEC (now Renesas Electronics)

Overview: DATA SHEET MOS INTEGRATED CIRCUIT µPD98409 ATM LIGHT SAR CONTROLLER.

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General Description

The µPD98409 (NEASCOT-S40CTM) is a high-performance SAR chip for segmentation and reassembly of ATM cells.

Provided with a PCI (Peripheral Component Interconnect) bus interface control memory and supporting a MPEG packet transfer engine function to mitigate the workload of the CPU in transferring compressed image data, this chip has ideal specifications for use in a set top box (STB) to interface with an ATM network.

The µPD98409 conforms to ATM Forum recommendations and has AAL5-SAR sublayer and ATM layer functions.

Key Features

  • Conforms to ATM Forum.
  • PCI bus interface (5/3.3 V, 32/64 bits, 33 MHz) Conforms to PCI Local Bus Specification Revision 2.1.
  • AAL-5 SAR sublayer and ATM layer functions.
  • Hardware support of AAL-5 processing (non-AAL-5 processing can be supported in software).
  • Supports up to 64 virtual channels (VC) (64-VC control memory).
  • Two traffic shapers for transmission scheduling.
  • MPEG packet transfer engine mitigating the workload of compresse.

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