SV92P

The Agere Systems SV92P chip set is a two-chip solution consisting of a Agere Systems SV92P PCI interface device and a CSP1035 silicon DAA or the CSP1034 line codec. It supports V.92, V.90, V.34 data, and FAX rates up to 14.4 kbits/s.

The SV92P is an interface device with the memory required for receiving, transmitting, and buffering data sent between the host system (soft modem stack) and the DAA or line codec. The SV92P has the following three interfaces:

PCI: SV92P uses the PCI interface to communicate with the host system or soft modem stack. This interface has two bus mastering streams and 5 V tolerant buffers. With this interface, the SV92P can take control of the local bus and exchange data directly with the host system RAM.

Serial input/output (SIO): SV92P uses the SIO port to interface with the CSP1034C line codec. The CSP1034C uses a transformer to interface the high-voltage analog portion of the circuit.

Differential input/output: SV92P uses the DIO port to interface with the CSP1035A DAA. The CSP1035A has an integrated line codec and is part of the line interface. The CSP1035A sits on the high voltage side of the modem circuit. It interfaces with the SV92P via a digital isolation barrier connected to the DIO port (For more information on the CSP1035A and the digital isolation barrier see the Line Powered DAA-CSP1035A Data Sheet.)

The DIO port is multiplexed with the SIO port.