a . A d d r e s s R a n g e s t h a t a r e d e f i n e d a s " N o t C l a i m e d b y a n y U n i t " M a s t e r A b o r t s w h e n a c c e s s e d .

M e m o r y - m a p p e d r e g i s t e r s a l s o a c c e s s i b l e v i a P C I c o n f i g u r a t i o n t r a n s a c t i o n s a r e :

• 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 )

• 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 - E )

R e g i s t e r s w h i c h m u s t h a v e a d d r e s s t r a n s l a t i o n l o g i c c o n f i g u r e d t o t r a n s l a t e P C I

a d d r e s s e s i n t o t h e I n t e l X S c a l e

m a p p e d r e g i s t e r s f r o m t h e P C I E x p r e s s i n t e r f a c e a r e :

• A p p l i c a t i o n D M A C o n t r o l l e r s

• 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 - E )

• D D R S D R A M M e m o r y C o n t r o l l e r

• S R A M M e m o r y C o n t r o l l e r

• I

C B u s I n t e r f a c e U n i t

• M e s s a g i n g U n i t

• S y s t e m C o n t r o l l e r s

• P e r i p h e r a l B u s I n t e r f a c e U n i t

T h e f o l l o w i n g s e c t i o n s d e s c r i b e t h e r e g i s t e r m a p f o r t h e i n t e r n a l u n i t s o f t h e I n t e l

8 1 3 4 1 a n d 8 1 3 4 2 . S e e t h e r e l e v a n t u n i t c h a p t e r s f o r d e t a i l e d d e s c r i p t i o n o f r e g i s t e r

f u n c t i o n .

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

1 0 2 4

I n t e l

8 1 3 4 1 a n d 8 1 3 4 2 — P e r i p h e r a l R e g i s t e r s

I n t e r n a l A d d r e s s O f f s e t

( R e l a t i v e t o P M M R B A R )

+ 5 2 8 0 0 H t h r o u g h 5 2 B F F H

+ 5 2 C 0 0 H t h r o u g h 5 2 F F F H

+ 5 3 0 0 0 H t h r o u g h 5 3 3 F F H

+ 5 3 4 0 0 H t h r o u g h 5 3 7 F F H

+ 5 3 8 0 0 H t h r o u g h 5 3 B F F H

+ 5 3 C 0 0 H t h r o u g h 5 3 F F F H

+ 6 0 0 0 0 H t h r o u g h 6 1 F F F H

+ 6 2 0 0 0 H t h r o u g h 6 3 F F F H

+ 6 4 0 0 0 H t h r o u g h 6 5 F F F H

+ 6 6 0 0 0 H t h r o u g h 6 7 F F F H

+ 6 8 0 0 0 H t h r o u g h 6 9 F F F H

+ 6 A 0 0 0 H t h r o u g h 6 B F F F H

+ 6 C 0 0 0 H t h r o u g h 6 D F F F H

+ 6 E 0 0 0 H t h r o u g h 6 F F F F H

+ 7 0 0 0 0 H t h r o u g h 7 1 F F F H

+ 7 2 0 0 0 H t h r o u g h 7 3 F F F H

+ 7 4 0 0 0 H t h r o u g h 7 5 F F F H

+ 7 6 0 0 0 H t h r o u g h 7 7 F F F H

+ 7 8 0 0 0 H t h r o u g h 7 9 F F F H

+ 7 A 0 0 0 H t h r o u g h 7 B F F F H

+ 7 C 0 0 0 H t h r o u g h 7 D F F F H

+ 7 E 0 0 0 H t h r o u g h 7 F F F F H

+ 8 0 0 0 0 H t h r o u g h 8 F F F F H

• M e s s a g i n g U n i t ( M U )

p r o c e s s o r a d d r e s s s p a c e , t o a c c e s s t h e m e m o r y -

• P e r f o r m a n c e M o n i t o r i n g U n i t

• I n t e r r u p t C o n t r o l l e r U n i t

• G e n e r a l P u r p o s e I / O U n i t

• I n t e r f a c e P a d C o n t r o l R e g i s t e r s

• T h i r d P a r t y M e s s a g i n g U n i t

• I n t e r - P r o c e s s o r M e s s a g i n g U n i t

• U A R T s

S p a c e

A l l o c a t e d

1 K B y t e

8 K B y t e s

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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