Design And Implement Of IEEE 1284 Parallel Interface

This paper first analyses IEEE Standard Signing Method for a Bi-directional Parallel Peripheral Interface for Personal Computer (simply called IEEE Std. 1284-1994). IEEE 1284 peripheral interface controller, W91284PIC produced by Warp Nine Engineering Corp, and IEEE 1284 transceiver, SN74LV161284 produced by Tl Corp are used to realize this kind of standard peripheral interface circuit. On the basis of this and taking, ECP ISA Implement Spec, made by Microsoft Corp. W91284P1C Data Sheet made by Warp Nine Engineering Corp and IEEE Standard 1284-1994 as a reference software in host and peripheral is realized and the communication between peripheral and host is implemented.IEEE Sid. 1284-1994 improves the rate of data transfer of parallel interface greatly and provides bi-directional data transfers It makes the demand for data is no more the bottleneck of peripheral performance At the same time, due to the characteristic of bi-directional data transfer, the host can identify the mode of peripheral sc the problem of mistake operation on unsupported device can be avoided.