ocr: C64 CIRCUIT THEORY 2- eua G AO-AS U5 364A 2361A 2332A GAS KERNAL CHARACTER ROM ROM ROM 000 300- IDCOO- Br-T I TFI DFFF) END un CI4L 71L5139 11 CR B 't E HE2 N L -L "N FARTR'UGF TEXPANSION (16- -PIN FEMALC! CNG 1/0 and ROM Address Decoding and Expansion Port. I/O Address Decoding Logic. U17 is a Programmable logic array (PLA). The output F5 on pin 12 called 1/0 goes "low" when any of the 1/O devices controlled by U15 are selected. The addresses are listed below for each device. VIC IC $D000 - $DO2E SID IC $D400 $D7FF Color Ram $D800 - $DBFF CIA1 $DCOO - $DCOF CIA2 $DDOO - $DDOF 1/0 1 $DE00 - $D ...
