Intel 81342 Developer's Manual page 155

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 ) — I n t e l
T a b l e 2 8 . A T U S t a t u s R e g i s t e r - A T U S R ( S h e e t 2 o f 2 )
R e g i s t e r O f f s e t
+ 0 0 6 H
B i t D e f a u l t
I n t e r r u p t S t a t u s - T h i s b i t r e f l e c t s t h e s t a t e o f t h e i n t e r r u p t i n t h e 8 1 3 4 1 a n d 8 1 3 4 2 A T U f u n c t i o n . O n l y
w h e n t h e I n t e r r u p t D i s a b l e b i t i n t h e A T U C M D i s a 0 a n d t h i s I n t e r r u p t S t a t u s b i t i s a 1 , a r e a n y o f t h e
8 1 3 4 1 a n d 8 1 3 4 2 ' s
0 3 0
2
N o t e :
0 2 : 0 0 0 0 0 R e s e r v e d
2
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
®
8 1 3 4 1 a n d 8 1 3 4 2
15 12
IOP
rc rc rc rc rc
Attributes
PCI
rc rc rc rc rc
Attributes
I N T [ A : D ] #
s i g n a l s a s s e r t e d b y t h e A T U f u n c t i o n .
S e t t i n g t h e I n t e r r u p t D i s a b l e b i t t o a 1 i n ( b i t 1 0 o f A T U C M D ) h a s n o e f f e c t o n t h e s t a t e o f t h i s
b i t .
8 4
ro ro rc ro ro ro ro ro rv rv
ro ro rc ro ro ro ro ro 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 t e l
0
rv
rv
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
®
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
1 5 5