FPGA是英文Field Programmable Gate Array的缩写，即现场可编程门阵列，它是在PAL、GAL、EPLD等可编程器件的基础上进一步发展的产物。它是作为专用集成电路（ASIC）领域中的一种半定制电路而出现的，既解决了定制电路的不足，又克服了原有可编程器件门电路数有限的缺点。 -FPGA Field Programmable Gate Array is the English abbreviation, ie, field programmable gate arrays, it is a product on the basis of PAL, GAL, EPLD programmable devices such as further development. It is as ASIC (ASIC) in the field of the emergence of a semi-custom circuits, both to solve the lack of custom circuits, but also to overcome the limited number of the original gates of programmable devices shortcomings.