摘要 :The Zatara® application-specific standard product (ASSP) includes the essential functions of a point-of-sale (POS) terminal, including a magnetic card reader, smart card controller, soft modem, and embedded security features. It provides seamless interfaces to LCD displays and keypads, and includes a wide array of peripherals such as UARTs, GPIOs, and timers. This application note describes how to configure the GPIO ports on the Zatara security chip.
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