342-0519-1

Found on...

• Macintosh 128k/512k/Plus

Equations

A9=1 A19=2 A20=3 A21=4 A22=5 A23=6 C2M=7 VID=8 CASL=9 CASH=10 
ROWS=11 GND=12 /TSEN2=13 RAMSIZE=14 ROMCE=15 OVERLAY=16 CAS0L=17 
CAS0H=18 CAS1L=19 CAS1H=20 SCSI=21 DACK=22 AS=23 VCC=24 

equations

/DACK = A9 * /AS * A19 * A20 * /A21 * A22 * /A23
DACK.oe = TSEN2

/SCSI = /A9 * /AS * A19 * A20 * /A21 * A22 * /A23
SCSI.oe = TSEN2

/CAS1H = /CAS1H * /CASH
	+ VID * /C2M * /CASH * ROWS
	+ A21 * /VID * /C2M * /CASH * RAMSIZE * ROWS
	+ A19 * /VID * /C2M * /CASH * /RAMSIZE * ROWS
CAS1H.oe = TSEN2

/CAS1L = /CAS1L * /CASL
	+ VID * /C2M * /CASL * ROWS
	+ A21 * /VID * /C2M * /CASL * RAMSIZE * ROWS
	+ A19 * /VID * /C2M * /CASL * /RAMSIZE * ROWS
CAS1L.oe = TSEN2
	
/CAS0H = /CAS0H * /CASH
	+ /CASH * /C2M * /ROWS
	+ /CASH * /C2M * /VID * RAMSIZE * /A21 * ROWS
	+ /CASH * /C2M * /VID * /RAMSIZE * /A19 * ROWS
CAS0H.oe = TSEN2

/CAS0L = /CAS0L * /CASL
	+ /CASL * /C2M * /ROWS
	+ /CASL * /C2M * /VID * RAMSIZE * /A21 * ROWS
	+ /CASL * /C2M * /VID * /RAMSIZE * /A19 * ROWS
CAS0L.oe = TSEN2

/ROMCE = /A20 * /A21 * A22 * /A23
	+ /A20 * /A21 * /A23 * OVERLAY
ROMCE.oe = TSEN2