Intel 386 Computer Hardware User Manual


 
I
"n+-
I
®
'eI
DRAM PLD DESCRIPTIONS
test
_vectors
([clk2,pclk,w_r,dramstart,rasO,rasl,muxoe,refreq,reset]
[cas,rasOp,raslp,dramrdy,refin,we]l;
d
r
"c
p
a r r
1t1
c
m a a
"k
1 w
s s s
"2
k
r
t
0 1
[c,h,l,
h,h,h
[c,l,l,
h,h,h
[c,
h,
1,
h,h,h
[c,
1,
1,
x,x,h
[c,
h,
1,
l,l,h
[c,l,l,
l,l,h
[c,h,l,
h,l,h
[c,l,l,
h,l,h
[c,h,l,
h,l,h
[c,l,l,
h,l,h
[c,
h,l,
h,h,h
[c,l,l,
h,h,h
[c,l,l,
h,h,h
[c,h,h,
h,h,h
[c,l,
h,
x,x,h
[c,
h, h,
l,l,h
[c,l,h,
l,l,h
[c,h,h,
h,l,h
[c,l,h,
h,l,h
[c,h,h,
h,l,h
[c,l,h,
h,l,h
[c,h,h,
h,h,h
[c,l,h,
h,h,
!""
[c,l,
h,
h,h,h
r
r r
r r
m
e
r a
a e e
u
f
e c s s
a f
x r
S
a 0 1 d
i w
0 e e
s p p
y n
e
e
q
t
read
cycle
,x
,h ,h
->
[h,h,h,h,x,x];
"reset
,x ,h
,h
->
[h,h,h,h,x,h];
"reset
,1
,1
,1
->
[h,h,h,h,l(h]
;
"idle/rasidle
,1
,1
,1
->
[h,h,h,h,l,h];
"idle/rasidle
,1
,I
,1
->
[l,l,h,h,l,h];
"
startdram/rasOact
,1
,1
,1
->
[l,l,h,h,l,h];
"
col_den/rasOact
,1
,1
,1
->
[l,l,h,l,l,h]
;
"
rasOact
,1 ,1 ,1
->
[l,l,h,l,l,h];
"
rasOact
,1 ,1 ,1
->
[h,l,h,h,l,h];
"
rasOact
,I
,I ,I
->
[h,l,h,h,l,h];
"
rasOact
,I
,I
,I
->
[h,h,h,h,l,h];
"
idle/rasidle
,I
,I
,I
->
[h,h,h,h,l,h];
"
idle/rasidle
,1
,I
,1
->
[h,h,h,h,l,h];
"
idle/rasidle
write
cycle
,1
,1
,1
->
[h,h,h,h,l,h];
"idle/rasidle
,I
,I ,I
->
[h,h,h,h,l,l];
"idle/rasidle
,I
,I
,I
->
[h,l,h,h,
1,1];
"
startdram/rasOact
,I ,I
,I
->
[l,l,h,h,l,l];
"
col_den/rasOact
,I ,I ,I
->
[l,l,h,l,
1,
1];
"
rasOact
,I
,I
,I
->
[l,l,h,l,l,l]
;
"
rasOact
,I
,I
,I
->
[h,l,h,h,l,l];
..
rasOact
,1
,1
,1
->
[h,l,h,h,l,l];
..
rasOact
,1
,1
,1
->
[h,h,h,h,l,l];
"
idle/rasidle
, 1
,1 ,1
->
[h,h,h,h,l,l];
"
idle/rasidle
,I
,1
,1
->
[h,h,h,h,l,l];
..
idle/rasidle
Figure 8-3. DRAMP2 PLD Equations (Contd.)
8-10
->