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DRAM PLD DESCRIPTIONS
[c,h,l,h,h,h,h,l,h,h,l,ll
-+
[ I
,h,
1
,h,
I
,h
I;
[c,l,x,h,h,h,h,l,h,x,l,ll
-+
[ I
,h
, I , I , I ,
hi;,
[c,h,h,h,h,h,h,h,l,l,l,ll
-+
[h,
h , I , I , I ,
hi;
[ c , I , h , h ,'h , h , h , h , I , I , I , I I
-+
[h,
h,
I , I , I
,h
I;
[c,h,h,h,h,h,h,h,I,I,I,11
-+
[h
, h , I , h , I
,h
I ;
[c,
I , x , h , x
,h
, h
,h
, I , x , I , I I
-+
[h,
h,
I
,h,
I
,h
I;
[c,h,I,h,h,h,h,h,I,h,I,ll
-+
[h,h,h,h,I,hl;
[c,I,x,h,h,h,h,h,I,x,I,ll
-+
[h,h,h,h,I,hl;
[c,h,l,h,h,h,h,h,l,l,l,ll
-+
[h,h,h,h,I,hl;
[c,I,x,h,h,h,h,h,I,I,I,11
-+
[h,h,h,h,I,hl;
[c,h,I,h,h,h,h,h,I,I,I,11
-+
[h,h,h,h,I,hl;
II
[c,I,x,h,h,h,h,h,I,I,I,ll
-+
[h,h,h,h,I,hl;
II
[c,h,h,h,h,h,h,h,h,I,I,ll
-+
[ I ,
h,
I
,h
, I
,h
I ;
II
[ c , I , h , h , h , h , h , h , h , I , I ,
I,
I
-+
[ I , h , I , I , I ,
hi;
II
[c,h,h,h,h,h,h,h,l,l,l,ll
-+
[h
,h
, I , I , I ,
hI;
II
[c,l,h,h,h,h,h,h,l,l,l,ll
-+
[h,
h,
I ,
I,
I
,h
I;
II
[c,h,h,h,h,h,h,h,l,l,l,ll
-+
[h,
h,
I
,h,
I
,h
I;
II
[c,l,x,h,x,h,h,h,l,x,l,ll
-+
[ h , h , I , h
,I
,
hI;
II
rasO
read
then
refresh
[c,h,I,h,I,h,h,h,h,h,I,11
-+
[I,I,h,h,I,hl;
[c,I,x,h,I,h,h,h,h,I,h,ll
-+
[I,I,h,I,I,hl;
[ c , h ,
h,
,h
, I
,h ,h
, I
,h
, L, h ,
II
-+
[h',
I
,h;
I , I ,
hi;
[c,I,h,h,I,h,h,I,h,I,h,11
-+
[h,I,h,I,I,hl;
[c,h,h,h,I,h,h,I,h,I,h,ll
-+
[h,I,h,h,I,hl
[c,I,h,h,I,h,h,I,h,x,h,11
-+
[h,I,h,h,I,hl
[c,h,h,h,I,h,h,I,h,h,h,ll
-+
[h,h,h,h,I,hl
[c,I,h,h,I,h,h,I,h,x,h,11
-+
[h,h,h,h,I,hl
[c,h,h,h,h,h,h,h,h,I,h,ll
-+
[h,h,h,h,h,hl
[c,l,h,h,h,h,h,h,h,l,h,ll
-+
[h,h,h,h,h,hl
[c,h,h,h,h,h,h,h,h,I,h,ll
-+'
[h,h,h,h,h,ll
[c,I,h,h,h,h,h,h,h,I,h,ll
-+
[h,h,h,h,h,11
[c,h,h,h,h,h,h,h,h,I,h,11
-+
[h,l;I,h,h,ll
[c,I,h,h,h,h,h,h,h,I,x,11
-+
[h,I,I,h,h,11
[c,h,h,h,h,h,h,h,h,I,x,ll
-+
[h,I,I,h,h,hl
[c,I,h,h,h,h,h,I,I,I,x,ll
-+
[h,I,I,h,h,hl,
[c,h,h,h,h,h,h,I,I,I,I,11
-+
[h,h,h,h,I,hl;
[c,I,h,h,h,h,h,I,I,I,I,11
-+
[h,h,h,h,I,hl;
['c , h , h , h ,
h,
h , h , I , I , I , I , I I
-+
[ h , h , h , h , I ,
hi;
[c,I,h,h,h,h,h,h,h,I,I,ll
-+
[h,h,h,h,I,hl;
[c,h,h,h,h,h,h,h,h,I,I,11
-+
[h,h,h,h,l,hl;
end
DRAM_COHTROLLER_FOR_80~86;
dramstart/ras1act
change
MUX
select
dramstart/ras1act
MUX
select
ras1act
ras1act
read
bank
1
,b
a c k
to
b a c k
rea
d
wa
1 t
for
prechuge
ba
ck
to
b a c k
read
wa
1 t
for
prechuge
ba
ck
to
b
Be
k
read
wa
It
for
precharge
dramstart/ras1act
change
MUX
select
dramstart/raslact
MUX
select
ras1act
rashct
ldle/rBsldle
change
MUX
select
dramstart/rBsOBct
MUX
select
rasOBct
rBsOact
rBsOBct
rasOBct
Refln
Bct.
Muxoe
act
refadroe
Bct
RAS
deact
muxoe
de
B'C t R A 5
mempend
Figure B·2. DRAMP1 PLD Equations (Contd.)
8-5