6523 Description
,..,modore ~ aemlcanduct:or group ~~@© MPS 6523 TRI-PORT INTERFACE 6523 TRI-PORT INTERFACE CONCEPT ... The 6523 TRI-PORT Interface (TPI) is designed to simplitythe implementation of plex I/O operations in microputer systems. It has three dedicated 8-bit I/O ports which provide 24 individually programmable I/O lines.
6523 Key Features
- 24 individually programmable I/O lines
- pletely static operation
- Two TIL Drive Capability
- 6 directly addressable registers
- 1 MHz, 2M Hz and 3MHz operation
- 000 001 010 011 100 101 11 0 111
- Port Register A R1 PRB
- Port Register B R2 PRC
- Port Register C R3 DDRA- Data Direction Register A R4 DDRB
- Data Direction Register B R5 DDRC