73M2921 modem equivalent, advanced single chip modem.
include a parallel interface control port between the host processor and the 73M2921. A synchronous serial data channel provides synchronizing clocks RXCLK and TXCLK from.
The 73M2921 provides DTMF tone generation and detection, precise call progress detect and ADSI functions such as CAS to.
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 reg.
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