To develop a GaN-based UV Digital Pixel Sensor (DPS),an IP core was designed and realized,in which a mnlti-channel bit serial (MCBS) and a commm DAC controller were impletmented.The process is based on the embedded soft-core NiosⅡ processor and system on programmable-chip (SOPC) technology.The function of the IP core was simulated and tested by controlling a 12-bit DAC chip TLV5639.The experiment shows that the design meets the performance requirements and the IP core based on SOPC function qnite well.The method is practical and versatile.