; C188 PLD Equation
; Memory and I/O decoder for C188 Single Board Computer
; Wichit Sirichote, kswichit@kmitl.ac.th
; Feb 29, 2004
; PLD: Lattice GAL16V8D
; * logical AND, + logical OR, / logical NOT

CHIP C188 GAL16V8

 a8= 2 a9=3 a10=4 den= 5 wr=6 rd=7 gcs3=8 gcs4=9 gcs5=1 gcs6=11
 gpio1=12 gpio2=13 10baseT=14 usb=15 lpt=16 lcd_e=17 rtc=18 ioexp=19
 

EQUATIONS

gpio1 = a8 + a9 + a10 + rd + gcs6

/gpio2 = a8 + a9 + a10 + wr + gcs6

/lcd_e = rd * wr + a8 + a9 + /a10 + gcs6 

rtc = /a8 + a9 + a10 + gcs6

10baseT = a8 + /a9 + a10 + gcs6

usb = /a8 + a9 + /a10 + gcs6

/lpt = /a8 + /a9 + a10 + wr + gcs6 

ioexp = den + gcs6