The traditional system is affected by the interference signal and the control capability is worse. It is proposed to design a discrete address data write in readout system based on programmable logic array, which can improve the control ability. Using Spartan-6"s Xilinx chip as the basic configuration, programmable logic array and passive configuration scheme of anti-jamming design, the hardware has the ability to resist the interference signal, the scheme of the hardware circuit are connected; the main passive configuration software function design, with sequence diagram to show the result of control, can resist external interference signal the. The experimental results show that the minimum control ability of the system can also reach 80%. Even under strong signal interference, it can effectively control discrete address data writing and reading.