The Digital Blocks DB8255A Programmable Peripheral Interface IP core is a full function equivalent to the Intel 8255A / 82C55A and Harris / Intersil 82C55A devices. The DB8255A RTL Verilog ...

The Digital Blocks DB8255A Programmable Peripheral Interface IP core is a full function equivalent to the Intel 8255A / 82C55A and Harris / Intersil 82C55A devices. The DB8255A RTL Verilog ...

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The parallel interface chip 82C55A can be programmed to solve the bidirectional data transmission. The mode of 2 of 82C55A was analyzed and the interface circuit was given. In software, according to ...