(a) Explain with a neat block diagram, the 8253 programmable timer in…
Previous year question for Exam.
Question
(a) Explain with a neat block diagram, the 8253 programmable timer interval. Write the control word. Write instructions to generate a pulse every $50-\mu\text{s}$ from counter 0. Use post address 80H. 12
(b) Explain the working of 8255 PPI in mode 2 as Bidirectional Data Transfer. 8
- Year: 2018