65C23
65C23 is TRI-PORT INTERFACE manufactured by Commodore.
FEATURES
:
- 24 individually programmable 1/0 lines
- pletely static operation
- Two TIL Drive Capability
- 6 directly addressable registers
- 1 M Hz operation
65C23 Addressing
65C23 REGISTERS (Direct Addressing)
- 000 001 010 011 100 101 110 1 11
RO PRA
- Port Register A R1 PRB
- Port Register B R2 PRC
- Port Register C R3 DORA
- Data Direction Register A R4 DDRB -- Data Direction Register B R5 DDRC
- Data Direction Register C Illegal States Illegal States
- NOTE: RS2. RS1. RSO respectively
ORDER NUMBER: MXS 65C23
'------ PACKAGE DESIGNATOR C=CERAMIC P = PLASTIC
65C23 PIN CONFIGURATION
Vss PAO PA1...
