8155 PPI
by KOMAL SINGH
1. Features
1.1. 2 programmable 8 bit i/o port
1.2. 1 programmable 6 bit i/o port
1.3. 1 programmable 14 bit cpunter and timer
2. Description
3. Block Diagram
4. Modes
4.1. Input
4.2. Output
4.3. Timer
5. Contain RAM i/o port and timer
6. Command Word Format