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为实现金融卡So C与读卡器之间的通信交互,本文设计了一种基于AMBA总线的智能卡接口(SCI)模块电路实现,相当于一个遵循ISO7816的智能卡模型,能实现与读卡器之间的通信及数据传输,也易于集成到So C芯片中。本文的设计实现优化了信号传输跨时钟域问题(CDC),优化了中断及寄存器的设置,并完成了功能验证。
In order to realize the communication interaction between SoC and card reader, a smart card interface (SCI) module circuit based on AMBA bus is designed, which is equivalent to a smart card model conforming to ISO7816, Between the communication and data transmission, but also easy to integrate into the So C chip. The design of this paper optimizes the cross-clock domain (CDC) of signal transmission, optimizes the setting of interrupts and registers, and completes the functional verification.