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

W h e n a n o r t h i n t e r n a l b u s t r a n s a c t i o n p o r t r e q u e s t i s d e t e c t e d a f t e r t h e c o u n t h a s b e e n e x c e e d e d b y

t h e c u r r e n t t r a n s a c t i o n , t h e t r a n s a c t i o n i s p r e e m p t e d a t t h e n e x t b u r s t l e n g t h b o u n d a r y . T h e c u r r e n t

t r a n s a c t i o n m u s t b e a n o n - n o r t h i n t e r n a l b u s t r a n s a c t i o n .

0 H = D i s a b l e d

4 H = E n a b l e d f o r 4 b u r s t s ( 1 6 d a t a p h a s e s f o r B u r s t L e n g t h = 4 , o r 1 2 8 B y t e s f o r 6 4 - b i t d a t a b u s )

a l l o t h e r v a l u e s a r e R e s e r v e d

I n t e l

8 1 3 4 1 a n d 8 1 3 4 2 — D D R S D R A M M e m o r y C o n t r o l l e r

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

S p e c i f i e s t h e n u m b e r o f D D R d a t a b u r s t s t h a t c o m p l e t e s b e f o r e

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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