73M2921 Overview
The 73M2921 is a CMOS integrated circuit which provides all the modem “Data Pump” functions required to implement a V.22bis data modem. It consists of a DSP (Digital Signal Processor) core with RAM and ROM data memory, ROM instruction memory, and register mapped input/output functions including timers, interrupts, Σ∆ ADC and DAC ports and Serial Data I/O. Once the 73M2921 has been initialized, all call progress and...