The board is controlled through a Windows interface which allows full access to all HSP50214 registers, and provides controls and displays for FM, FSK, BPSK and QPSK signal demodulation. To speed evaluation, the ST-114 includes a Intersil HI5703 10 Bit 40 Msample/sec A/D converter, Texas Instruments TMS320C50 DSP processor, Intersil HSP45106 Numerically Controlled Oscillator, dual Intersil CA3338A high speed D/A converters and a 16 bit audio D/A converter.