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2 . 1 3 . 6 7 I n b o u n d A T U T r a n s l a t e V a l u e R e g i s t e r 3 - I A T V R 3
T h e I n b o u n d A T U T r a n s l a t e V a l u e R e g i s t e r 3 ( I A T V R 3 ) i n c o n j u n c t i o n w i t h t h e
A T U U p p e r T r a n s l a t e V a l u e R e g i s t e r 3 - I A U T V R 3 " o n p a g e 2 1 2
t h e i n t e r n a l b u s a d d r e s s u s e d t o c o n v e r t P C I b u s a d d r e s s e s . T h e c o n v e r t e d a d d r e s s i s
d r i v e n o n t h e i n t e r n a l b u s a s a r e s u l t o f t h e i n b o u n d A T U a d d r e s s t r a n s l a t i o n .
T a b l e 9 0 .
I n b o u n d A T U T r a n s l a t e V a l u e R e g i s t e r 3 - I A T V R 3
31
IOP
rw
rw
rw
Attributes
PCI
rw
rw
rw
Attributes
R e g i s t e r O f f s e t
+ 2 0 C H
B i t
D e f a u l t
I n b o u n d A T U T r a n s l a t i o n V a l u e 3 - B i t s 3 1 t o 1 2 o f i n t e r n a l b u s a d d r e s s u s e d t o c o n v e r t t h e P C I a d d r e s s
3 1 : 1 2
0 0 0 0 0 H
t o i n t e r n a l b u s a d d r e s s e s . T h i s v a l u e m u s t b e n a t u r a l l y a l i g n e d w i t h t h e I A B A R 3 r e g i s t e r ' s p r o g r a m m e d
v a l u e ( s e e
1 1 : 0 1
0 0 0 H
R e s e r v e d
B i g E n d i a n B y t e S w a p e n a b l e - W h e n s e t t h e A T U p e r f o r m s a b y t e s w a p o n a l l P C I r e a d / w r i t e
0 0
0
t r a n s a c t i o n s t h r o u g h B A R 3 . W h e n c l e a r , n o s w a p i s p e r f o r m e d . R e f e r t o
S w a p p i n g " o n p a g e 8 3
2 . 1 3 . 6 8 I n b o u n d A T U U p p e r T r a n s l a t e V a l u e R e g i s t e r 3 - I A U T V R 3
T h e I n b o u n d A T U U p p e r T r a n s l a t e V a l u e R e g i s t e r 3 ( I A U T V R 3 ) i n c o n j u n c t i o n w i t h t h e
" I n b o u n d A T U T r a n s l a t e V a l u e R e g i s t e r 3 - I A T V R 3 " o n p a g e 2 1 2
t h e i n t e r n a l b u s a d d r e s s u s e d t o c o n v e r t P C I b u s a d d r e s s e s . T h e c o n v e r t e d a d d r e s s i s
d r i v e n o n t h e i n t e r n a l b u s a s a r e s u l t o f t h e i n b o u n d A T U a d d r e s s t r a n s l a t i o n .
T a b l e 9 1 .
I n b o u n d A T U U p p e r T r a n s l a t e V a l u e R e g i s t e r 3 - I A U T V R 3
31
IOP
rv
rv
rv
Attributes
PCI
rv
rv
rv
Attributes
R e g i s t e r O f f s e t
+ 2 1 0 H
B i t
D e f a u l t
3 1 : 0 4
0 0 0 0 0 0 0 H R e s e r v e d
I n b o u n d U p p e r A T U T r a n s l a t i o n V a l u e 3 - T h i s v a l u e r e p r e s e n t s b i t s 3 5 t o 3 2 o f t h e i n t e r n a l b u s a d d r e s s
3 : 0
0 H
u s e d t o c o n v e r t t h e P C I a d d r e s s t o i n t e r n a l b u s a d d r e s s e s .
®
I n t e l
8 1 3 4 1 a n d 8 1 3 4 2 I / O P r o c e s s o r s
D e v e l o p e r ' s M a n u a l
2 1 2
28
24
20
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
S e c t i o n 2 . 1 3 . 2 3 , " D e t e r m i n i n g B l o c k S i z e s f o r B a s e A d d r e s s R e g i s t e r s " o n p a g e 1 6 9
f o r m o r e d e t a i l s .
28
24
20
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
®
I n t e l
8 1 3 4 1 a n d 8 1 3 4 2 — A d d r e s s T r a n s l a t i o n U n i t ( P C I - X )
16
12
rw
rw
rw
rw
rw
rw
rw
rv
rv
rv
rw
rw
rw
rw
rw
rw
rw
rv
rv
rv
A t t r i b u t e L e g e n d :
R V = R e s e r v e d
P R = P r e s e r v e d
R S = R e a d / S e t
D e s c r i p t i o n
16
12
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
A t t r i b u t e L e g e n d :
R V = R e s e r v e d
P R = P r e s e r v e d
R S = R e a d / S e t
D e s c r i p t i o n
" I n b o u n d
c o n t a i n b i t s 3 5 t o 1 2 o f
8
4
0
rv
rv
rv
rv
rv
rv
rv
rv
rw
rv
rv
rv
rv
rv
rv
rv
rv
rw
R W = R e a d / W r i t e
R C = R e a d C l e a r
R O = R e a d O n l y
N A = N o t A c c e s s i b l e
) .
S e c t i o n 2 . 3 , " B i g E n d i a n B y t e
c o n t a i n b i t s 3 5 t o 1 2 o f
8
4
0
rv
rv
rv
rv
rv
rw
rw
rw
rw
rv
rv
rv
rv
rv
rw
rw
rw
rw
R W = R e a d / W r i t e
R C = R e a d C l e a r
R O = R e a d O n l y
N A = N o t A c c e s s i b l e
D e c e m b e r 2 0 0 7
O r d e r N u m b e r : 3 1 5 0 3 7 - 0 0 2 U S
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