Processor PCB
1. AO TO A19, IRQ, lOR, lOW, BHE, IRST, PHIO
LS244
AO TO A19
2. RDY
v
ee
<'
>
~
8284
I
"'
RDY
LSTTL
X111
I
" "
(LOGICAL 1 )
3. IRO TO IRll, DRQO TO DRQl
Vee
LS14
8259A
OR 8237-5
4. DACK
8237-5
p
<-J
LSTTL
Figvre 2-8 Processor Interface Circuits
2-11
