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