Because of thefinite available space on the PC104 card, it use high integrated degree, complex programmable logic device CPLD implement the data communication between 429 bus and PC104 bus.

• 由于PC104板卡存在可利用空间小的特点,采用高集成度的复杂可编程逻辑器件CPLD实现与429总线的收发电路和与PC104总线之间的数据通信。