Universal asynchronous receiver transmitter (UART) emulation stage for modem communication

A method for facilitating universal asynchronous receiver transmitter (UART) emulation for modem communication comprising:

• utilizing a software UART control program for sending UART control signals and for communicating to a modem application interface program that is under control of a host processor;
• storing modem data in at least dedicated transmit and receive FIFO buffer memory;
• generating an interrupt for the digital signal processor when the receive FIFO buffer memory is at a predetermined threshold;
• and
• providing host processor interrupt pacing to facilitate overriding of the interrupt from the UART emulation circuitry to the host processor due to write bursts from the digital signal processor.

A method for facilitating universal asynchronous receiver transmitter (UART) emulation for modem communication comprising:

• utilizing a software UART control program for sending UART control signals and for communicating to a modem application interface program that is under control of a host processor;
• storing modem data in at least dedicated transmit and receive FIFO buffer memory;
• generating an interrupt for the digital signal processor when the receive FIFO buffer memory is at a predetermined threshold;
• facilitating host processor interrupt pacing to facilitate overriding of the interrupt from UART emulation circuitry to the host processor due to write bursts from the digital signal processor, and generating an interrupt for the digital signal processor when UART registers are written and when a UART FIFO buffer memory threshold is reached.