Agnus/ Read/ Denise/ Register Address Write Paula Function -------- ------- ----- ------- -------- POTGO 034 W P Pot port data write and start. POTGOR 016 R P Pot port data read (formerly called POTINP). This register controls a 4-bit bi-directional I/O port that shares the same four pins as the four pot counters above. BIT# FUNCT DESCRIPTION ---- --------------------------------------- 15 OUTRY Output enable for Paula pin 36 14 DATRY I/O data Paula pin 36 13 OUTRX Output enable for Paula pin 35 12 DATRX I/O data Paula pin 35 11 OUTLY Output enable for Paula pin 33 10 DATLY I/O data Paula pin 33 09 OUTLX Output enable for Paula pin 32 08 DATLX I/O data Paula pin 32 07-01 0 Reserved for chip ID code (PAULA=0/ARNE=1) 00 START Start pots (dump capacitors, start counters)