Research and design of CRT controller based on CPLD

The design of CRT controller is studied, which is applied in the Speech Interactive System based on ASIC. CRT controller based on CPLD is presented. MCU flexible read and write to RAM with CPLD. Meanwhile, the simulation is also given based on Maxplus II. The simulating results prove that the design can reach the demand of real time exchanging, and has integrality, reliability and good applications in the Speech Interactive System.