8257 Direct Memory Access Study Card

Description

Programmable Direct Memory Access controller using 8257 IC. On-board 2K RAM Provided using 6116 IC for DMA Operation. 8 Inputs are fed through input terminals with 3 mm LED indicator. Data lines from AD0 to AD7 are indicated by 3mm LED. Chip Select, Read, Write, A0, A1, A2, A3, Memory-Write, Memory-Read, IO-Write, IO-Read are indicated by 3mm LED. AEN, Mark, TC, HRQ, DACK0, DACK1, DACK2 are indicated by 3 mm LED. Hardware Single Step and Full Clock Execution modes are provided. Single stepping can be performed using micro switch provided on board. Using this study card all MODE experiment can be performed. Interface 8085/8086 Kit using 50 pin FRC Connector. User's Manual with Sample Programs..