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一、概述HKE65SC22多功能接口适配器(VIA)是采用硅栅技术制成的,它具备 HKE65SC21(MC6821)的全部功能,同时因增加了辅加内部寄存器和计数器,进一步增强了其控制性能。可编程控制的8位双向 I/O 口以并行方式提供了 HKE65SC22与外围设备之间的服
I. Overview HKE65SC22 Multifunction Interface Adapter (VIA) is made of silicon gate technology, which has all the features HKE65SC21 (MC6821), due to the addition of an additional internal registers and counters to further enhance its control performance. Programmable 8-bit bi-directional I / O port provides parallel between HKE65SC22 and peripheral equipment