Intel 386 Computer Hardware User Manual


 
LOCAL BUS CONTROL PLD DESCRIPTIONS
[e,h,h,h,h,h,h,h,h,ll
->
[h,h,h,h,h,hl;
[e,h,h,h,h,h,h,h,h,ll
->
[h,h,h,h,h,hl;
,
'idle
"idle
end
iopldl;
eprom/io
controller
intel
corporation
Equations
for
Module
iopldl
Device
U7
- Reduced
Equations:
!trioen
:=
(!elk.
&
!trioen
# !buseye &
iordy
&
!trioen
# !buseye &
elk
&
mio
&
na
& pa31 &
reev
&
trioen
# !buseye &
elk
& !mio &
na
& !pa31 &
reev
&
trioen);
!iord
:=
(!elk
& eprd &
inta
&
!iord
& iowr &
reev
# eprd &
inta
&
!iord
&
iordy
& iowr &
reev
# !buseye &
elk
&
de
& eprd &
inta
&
iordy
& iowr & !mio &
na
& !pa31 &
reev
&
!wr);
!iowr
.-
(!elk
&
eprd
&
inta
&
iord
&
iordy
& !iowr &
reev
# eprd &
inta
&
iord
&
iordy
& !iowr & reev &
timedly
# !buseye &
elk
&
de
& eprd &
inta
&
iord
&
iordy
& iowr &
!mio &
na
& !pa31 &
reev
& wr);
!eprd
:=
(!elk
&
!eprd
&
i~ta
&
iord
& iowr &
reev
#
!eprd
&
inta
&
iord
&
iordy
& iowr &
reev
# !buseye &
elk
&
inta
&
iord
&
iordy
& iowr &
na
& pa31 &
reev &
!wr);
!inta
.-
(!elk
&
ep~d
&
!inta
&
iord
& iowr &
reev
!iordy
.-
# eprd &
!inta
&
iord
&
iordy
& iowr & reev
# !buseye &
elk
& !de & eprd &
iord
&
iordy
& iowr & !mio &
na
& !pa31 &
reev
&
!wr);
(!
elk
&
eprd &
iord
&
!iordy
&
iowr &
reev
#
elk
& eprd &
!inta
&
iord
&
iordy
& iowr
&
reev
&
!timedly
#
!elk
& eprd &
inta
&
!iordy
&
iowr &
reev
#
elk
,&
eprd &
inta
&
!iord
&
iordy
& iowr &
reev
&
!timedly
#
elk
& eprd &
inta
&
iord
&
iordy
& !iowr
&
reev
&
!timedly
#
!elk
&
inta
&
iord
&
!iordy
& iowr &
reev
#
elk
& !eprd &
inta
&
iord
&
iordy
& iowr &
reev
&
!timedly
#
!buseye &
elk
& !de & eprd &
inta
&
iord
&
iordy
& iowr &
mio
&
na
&
reev
& wr);
!reev
.-
(!elk
&
eprd &
inta
&
iord
&
iordy
& iowr &
!reev
# eprd
&
inta
&
iord
&
iordy
& iowr &
!reev
&
timedly
#
elk
& eprd &
!inta
&
iord
&
!iordy
& iowr &
reev
#
elk
& eprd
&
inta
&
!iord
&
!iordy
& iowr &
reev
#
elk
&
eprd
&
'inta
&
!iordy
& iowr &
!mio &
reev);
Figure A·1. IOPLD1 Equations (Contd.)
A-5