AM79C32A Datasheet PDF | Advanced Micro Devices

Advanced Micro Devices AM79C32A

the Am79C32A ISDN Data Controller (IDC™) Circuit. The Am79C32A is used in data-only applications. The Am79C30A/32A is fully compatible with the CCITT-I-series recommendations for the S and T reference points, ensuring that the user of the device may design TEs which conform to the international standards.

Part No.	AM79C32A
Datasheet	AM79C32A Download
Manufacturer	Advanced Micro Devices
Description	Digital Subscriber Controller (DSC) Circuit
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GENERAL DESCRIPTION

The Am79C30A Digital Subscriber Controller (DSC) Circuit and Am79C32A ISDN Data Controller (IDC) Circuit, shown in the Block Diagram, allow the realization of highly-integrated Terminal Equipment for the ISDN. The Am79C30A/32A provides a 192-Kbit/s full duplex digital path over four wires between the TE located on the subscriber's premises and the NT or PABX linecard. All physical layer functions and procedures are implemented in accordance with CCITT Recommendation I.430, including framing, synchronization, maintenance, and multiple ter minal contention. Both point-to-point and point-to-multipoint configurations are supported. The Am79C30A/32A processes the ISDN basic rate bit stream, which consists of B1 (64 Kbit/s), B2 (64 Kbit/s), and D (16 Kbit/s) channels. The B channels are routed to and from different sections of the Am79C30A/32A under software control. The D channel is partially processed by the DSC/IDC circuit and is passed to the microprocessor for further processing.