A process pressure transmitter, comprising: at least one sensor which monitors a process pressure; an analog-to-digital (A/D) converter circuitry coupled to the at least one sensor and configured to provide process pressure data indicative of process pressure values; a digital signal processor coupled to the A/D converter circuitry to receive the process pressure data, the DSP comprising a co-processor configured to receive and perform calculations on the process pressure data from the A/D converter circuitry to generate output data; a communications circuitry configured to control communication with the process pressure transmitter and to transmit data received from the DSP, wherein the communications circuitry comprises: a digital modem coupled to the loop power circuitry and configured to control the output circuit to communicate over the loop wiring using a digital communications protocol; and a digital-to-analog converter coupled to the loop power circuitry and configured to provide an analog signal to the loop power circuitry to thereby control the 4-20 mA current on the loop wiring; a microprocessor, separate from the co-processor of the DSP, the microprocessor coupled between the co-processor and the communications circuitry to control movement of the output data from the DSP to the communications circuitry for communication from the process pressure transmitter and to provide output data to the digital modem of the communications circuitry for communication from the process transmitter wherein the DSP, the separate microprocessor and the communications circuitry are configured to provide the first data path for the output data from the co-processor of the DSP, through the separate microprocessor to the digital modem of the communication circuitry, wherein the DSP is also coupled to a second portion of the communications circuitry and wherein the DSP and the communications circuitry are configured to provide the second data path with reduced latency as compared to communication of output data using the microprocessor and the first data path for the output data from the co-processor of the DSP to the second portion of the communications circuitry. at least one sensor which monitors a process pressure; an analog-to-digital (A/D) converter circuitry coupled to the at least one sensor and configured to provide process pressure data indicative of process pressure values; a digital signal processor coupled to the A/D converter circuitry to receive the process pressure data, the DSP comprising a co-processor configured to receive and perform calculations on the process pressure data from the A/D converter circuitry to generate output data; a communications circuitry configured to control communication with the process pressure transmitter and to transmit data received from the DSP, wherein the communications circuitry comprises: a digital modem coupled to the loop power circuitry and configured to control the output circuit to communicate over the loop wiring using a digital communications protocol; and a digital-to-analog converter coupled to the loop power circuitry and configured to provide an analog signal to the loop power circuitry to thereby control the 4-20 mA current on the loop wiring; a microprocessor, separate from the co-processor of the DSP, the microprocessor coupled between the co-processor and the communications circuitry to control movement of the output data from the DSP to the communications circuitry for communication from the process pressure transmitter and to provide output data to the digital modem of the communications circuitry for communication from the process transmitter wherein the DSP, the separate microprocessor and the communications circuitry are configured to provide the first data path for the output data from the co-processor of the DSP, through the separate microprocessor to the digital modem of the communication circuitry, wherein the DSP is also coupled to a second portion of the communications circuitry and wherein the DSP and the communications circuitry are configured to provide the second data path with reduced latency as compared to communication of output data using the microprocessor and the first data path for the output data from the co-processor of the DSP to the second portion of the communications circuitry.