The logic design of timing driving, video acquisition and temperature acquisition is realized for an uncooled infrared focal plane by using a CyconeIV FPGA from Altera Corporation. The logic module is packaged into two peripheral controllers which are connected to the Avalon bus as the peripherals of a Nios II processor. This logic design has been used in actual products. It has the advantages of less logical resource, lower power consumption, stable time sequence and easy portability for different focal planes.