基于EMIF总线接口的桥芯片设计

Design of bridge chip based on EMIF bus interface

EMIF是DSP(数字信号处理器)器件上的外部存储接口,基于TMS320VC5510电路的EMIF接口,提出了一种桥芯片的设计方法。该桥芯片包含了多个低速外设如I2C、UART以及SDIO接口,同时集成了IDO、ADC模拟IP,设计进行了充分的EDA仿真和FPGA验证,并进行了流片验证,实装测试结果表明EMIF接口可与桥芯片通信无误,实现了TMS320VC5510电路的外设扩展功能。该桥芯片的设计方法大大增加了市场上SoC设计的灵活度,有效地降低了设计周期,节约了设计成本。

EMIF is an external storage interface on a DSP(digital signal processor) device,and this paper proposes a bridge chip design method based on the EMIF interface of the TMS320VC5510 circuit.The bridge chip contains low-speed peripherals I2C,UART and SDIO interface,while integrating IDO,ADC analog IP.This design has been fully EDA simulation and FPGA verification,and tapeout for silicon verification.The implementation test results show that the EMIF interface can communicate with the bridge chip without error,and realize the peripheral expansion function of the TMS320VC5510 circuit.The design method of this bridge chip greatly increases the flexibility of SoC design on the market,effectively reduces the design cycle,and saves design costs.