knudsen@ihnss.UUCP (07/15/83)
I'd like to know what functions are performed by the 6522 chip. I assume it is a PIA, with two 8-bit bi-directional (programmable0 parallel ports. But what else does it have? Interrupts, timer, or what? The 6530 chip used in KIM-I had all that plus ROM and a little RAM. Are there any manufacturer's spec sheets for this and other 6502 family parts, or do I need to borrow a Commodore or Apple manual? Thanks, mike k