Intel 80386

LOCAL BUS CONTROL PAL DESCRIPTIONS
[c,H, NOTLOCAL,
X,X,X,
x)
->
[H,L,H,H,H,
L,L,L);
[c,L, NOTLOCAL, X,X,X,
x)
->
[H,H,H,H,H, L,L,L);
[c,H, NOTLOCAL, X,X,X,
x)
->
[H,H,H,H,H, H,H,H) ;"lOOnS
SRAM read
[e,L,
SAMPLECS, H,H,L, L) -> [L,H,H,H,H,
L,H,H];
[c,H, NOTLOCAL,
X,X,X,
L)
->
[L,H,H,H,H,
L,L,L);
[c,L, NOTLOCAL,
x,x,x,
x)
->
[L,H,H,H,H, L,L,L);
[c,H,
NOTLOCAL, x,x,x,
xl
->
[H,H,H,H,H, H,H,H);"non-local
[c,L, SAMPLECS, X,X,X,
H)
->
[H,H,H,H,H,
L,H,H) ;
[c,H, NOTLOCAL,
X,X,X,
Hl
->
[H,H,H,H,H; H,H,H);"READY: activated externally
[c,L, NOTLOCAL,
X,X, x,
x)
->
[H,H,H,H,H, H,H,H);
[c,H,
NOTLOCAL,
X,X, x, x)
->
[H,H,H,H,H,
H,H,H) ;"lOOnS SRAM read
[e,L, SAMPLECS,
H,L,L, L)
->-
[L,H,H,H,H,
L,H,H];
[c,H, NOTLOCAL,
X,X,X,
L)
->
[L,H,H,H,H, L,L,L);
[c,L, NOTLOCAL,
X,X,X,
xl
->
[L,H,H,H,H, L,L,L);
[c,H, NOTLOCAL,
X,X,X,
x)
->
[H,H,H,H,H,
H,H,H);"idle
[c,L,
WAITING, X,X,X,
x)
->
[H,H,H,H,H, H,H,H) ;
[c,H, WAITING,
x,x,x,
x)
->
[H,H,H,H,H, H,H,H);
[e,L,
WAITING, x,x,x,
x)
->
[H,H,H,H,H, H,H,H);
[c,H, WAITING,
X,X,X,
xl
->
[H,H,H,H,H, H,H,H);"lOOnS
SRAM write
[e,L, SAMPLECS,
H/R,H,
Ll
->
[H,L,H,H,H,
L,H,H) ;
[c,H, NOT LOCAL ,
X,X,X,
L)
->
[H,L,H,H,H,
L,L,H) ;
[c,L, NOTLOCAL,
X,X,X,
x)
->
[H,L,H,H,H,
L,L,H) ;
[c,H, NOT LOCAL ,
X,X,X,
x)
->
[H,L,H,H,H, L,L,L) ;
[c,L, NOT LOCAL ,
X,X,X,
x)
->
[H,H,H,H,H,
L,L,L) ;
[c,H, NOTLOCAL,
X,X,X,
x)
->
[H,H,H,R/H,
H,H,H];"idle
[e,L, WAITING,
x,x,x,
x)
->
[H,H,H,H,H, H,H,H) ;
[c,R , WAITING,
X,X,X,
x)
->
[H,H,H,H,H,
H,RtH] ;
[e,L, WAITING, x,x,x,
x)
->
[H,H,H,H,H, H,H,H) ;
[c,R,
WAITING,
X,X,X,
xl
->
[H,H,H,H,H,
H,H,H);"150nS
ROM read
[e,L,
SAMPLECS,
X,X,X,
Hl
->
[H,H,H,H,H,
L,H,H) ;
[c,H, MEMORY
, H,H,L,
xl
->
[L,H,H,H,H, L,L,H) ;
[c,L,
MEMORY , x,x,x,
x)
->
[L,H,H,H,H, L,L,H) ;
[c,R, MEMORY ,
X,X, x,
xl
->
[L,H,H,H,H,
L,L,L) ;
[e,L, MEMORY
, X,X,X,
xl
->
[L,H,H,H,H,
L,L,L);
[c,R , FLOAT ,
x/x,x,
x)
->
[H,H,H,H,H,
L,H,H] :
[e,L,
FLOAT ,
X,X,X,
x)
->
[H,H,H,H,H,
L,H,H) ;
[c,H, WAITING,
X,X, x, x)
->
[H,H,H,H,H,
H,H,H);"lOOnS
SRAM read
[c,L, SAMPLECS,
H,L,L,
L)
->
[L,H,H/R,H,
L,H,Hl;
[c,H, NOTLOCAL,
X,X,X,
L)
->
[L,H,H,H,H,
L,L,Ll;
[c,L,
NOTLOCAL,
X,X,X,
xl
->
[L,H,H,H,H,
L,L,L);
[c,H, NOTLOCAL,
X,X,X,
xl
->
[H,H,H,H,H,
H,H,H);"150nS
ROM read
[c,L, SAMPLECS,
x,x,x,
H)
->
[H,H,H,H,H, L,H,H);
[c,R ,
MEMORY
,
H,L,L,
xl
->
[L,H,H,H,H,
L,L,H);
[c,L, MEMORY
, x,x,x,
x)
~>
[L,H,H,H,H,
L,L,Hl;
[c,H,
MEMORY ,
x,x,x,
x)
->
[L,H,H,H,H,
L,L,L) ;
[c,L, MEMORY
, x,x,x,
x)
->
[L,H,H,H,H, L,L,L);
[c,H,
FLOAT , x,x,x,
x)
->
[H,H,H,H,H,
L,H,H) ;
[c,L, FLOAT ,
x,x,x,
x)
->
[H,H,H,H,H,
L,H,H) ;
[c,H, WAITING,
x,x,x,
x)
->
[H,H,H,H,H,
H,H,H)-; "l50nS 'SRAM
write
[c,L,
SAMPLECS,
x,x,x,
H)
->
[H,H,H,H,H,
L,H,H);
[c,H,
MEMORY ,
H,H,H,
x)
->
[H,L,H,H,H, L,L,H) ;
[c,L,
MEMORY ,
x,x,x,
x)
->
[H,L,H,H,H,
L,L,H);
[c,H, MEMORY ,
x,x,x,
x)
->
[H,L,H,H,H,
L,L,L);
[c,L, MEMORY
, x,x,x,
x)
->
[H,L,H,H,H,
L,L,L);
[c,H, FLOAT
,
X,X,X,
x)
->
[H,H,H,H,H,
L,L,H);
[c,L,
FLOAT ,
x,x,x,
x)
->
[H,H,H,H,H,
L,H,H);
[c,H,
WAITING,
x,x,x,
x)
->
[H,H,H,H,H,
H,H,H);"150nS
SRAM read
[c,L,
SAMPLECS,
x,x,x,
H)
->
[H,H,H,H,H,
L,H,H);
[c,H,
MEMORY ,
H,H,L,
x) ->
[L,H,H,H,H,
L,L,H);
[c,L, MEMORY
, x,x,x,
x)
->
[L,H,H,H,H,
L,L,H) ;
[c,H, MEMORY
,
x,x,x,
x)
->
[L,H,H,H,H,
L,L,L);
[c,L,
MEMORY ,
x,x,x,
x)
->
[L,H,H,H,H,
L,L,L);
[c,H,
FLOAT , X,X,X,
x)
->
[H,H,H,H,H,
L,H,H);
[c,L,
FLOAT ,
X,X,X,
x)
->
[H,H,H,H,H,
L,H,H) ; II idle
[c,H,
WAITING,
x,x,x,
x)
->
[H,H,H,H,H, H,H,H);
[c,L, WAITING,
x,x,x,
x)
->
[H,H,H,H,H,
H,H,H);
[c,H, WAITING,
x,x,x,
x)
->
[H,H,H,H,H,
H,H,H);"150nS SRAM read
Figure A-2. PAL-2 State Listings (Cont'd.)
A-12