Parallel Ports Using PPI 8255 — Study Resources & PYQs
Parallel ports using PPI 8255
- Estimated study time: 150 minutes
Study resources
- Architecture, Modes 0/1/2, BSR Mode (Article) — Comprehensive coverage of 8255 PPI — port structure (PA, PB, PC upper/lower), control word format, Mode 0 (simple I/O), Mode 1 (strobed), Mode 2 (bidirectional), BSR mode.
- 8255 Architecture & Modes (Tutorialspoint) (Article) — Full description of 8255 pin diagram, port configurations, control register programming, and how to interface it with 8086/8085. Includes operational mode descriptions.
Taught in these subjects
- Microprocessors and Interfacing — ECT-1502 · Government College of Engineering and Technology, Jammu