Intel 81342 Developer's Manual page 578

7 . 3 . 3 . 3 D D R S D R A M B a n k S i z e s a n d C o n f i g u r a t i o n s
T h e D M C U s u p p o r t s a m e m o r y s u b s y s t e m r a n g i n g f r o m 1 2 8 M b y t e s t o 4 G B y t e s . A n
E C C o r n o n - E C C s y s t e m i s i m p l e m e n t e d u s i n g x 8 , o r x 1 6 d e v i c e s .
s u p p o r t e d D D R S D R A M c o n f i g u r a t i o n s w h e n b i t 6 o f S D C R 0 i s c l e a r e d , w h e r e a s
T a b l e 3 5 8
1 2 8 M b y t e s D D R m e m o r y s i z e i s o n l y a p p l i c a b l e w h e n t h e D M C U i s s e t u p t o 3 2 - b i t d a t a
N o t e :
b u s w i d t h . O t h e r w i s e , t h e m i n i m u m D D R 2 m e m o r y t h a t c a n b e s u p p o r t e d w i t h a 6 4 - b i t
d a t a b u s i s 2 5 6 M B y t e s f o r o n e b a n k .
T a b l e 3 5 7 . S u p p o r t e d D D R 2 S D R A M C o n f i g u r a t i o n s ( S D C R 0 [ 6 ] c l e a r e d )
D D R 2 S D R A M D D R S D R A M
A r r a n g e m e n t # B a n k s
T e c h n o l o g y
5 1 2 M b i t
6 4 M b x 8
3 2 M b x 1 6
1 G b i t
1 2 8 M b x 8
6 4 M b x 1 6
2 G b i t
2 5 6 M b x 8
1 2 8 M b x 1 6
a . T a b l e i n d i c a t e s 6 4 - b i t w i d e m e m o r y s u b s y s t e m s i z e s . F o r 3 2 - b i t w i d e m e m o r y , t h e m e m o r y s u b s y s t e m s i z e w o u l d b e h a l f o f t h a t
i n d i c a t e d .
(
T a b l e 3 5 8 . S u p p o r t e d D D R 2 S D R A M C o n f i g u r a t i o n s ( S D C R 0 [ 6 ] s e t )
D D R 2 S D R A M D D R S D R A M
A r r a n g e m e n t # B a n k s
T e c h n o l o g y
5 1 2 M b i t
6 4 M b x 8
3 2 M b x 1 6
1 G b i t
1 2 8 M b x 8
6 4 M b x 1 6
2 G b i t
2 5 6 M b x 8
1 2 8 M b x 1 6
a . T a b l e i n d i c a t e s 6 4 - b i t w i d e m e m o r y s u b s y s t e m s i z e s . F o r 3 2 - b i t w i d e m e m o r y , t h e m e m o r y s u b s y s t e m s i z e w o u l d b e h a l f o f t h a t
i n d i c a t e d .
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
5 7 8
i l l u s t r a t e s s u p p o r t e d D D R S D R A M c o n f i g u r a t i o n s w h e n b i t 6 o f S D C R 0 i s s e t .
A d d r e s s S i z e
R o w
1
1 4
2
1
1 3
2
1
1 4
2
1
1 3
2
1
1 5
2
1
1 4
2
A d d r e s s S i z e
R o w
1
1 4
2
1
1 3
2
1
1 4
2
1
1 3
2
1
1 5
2
1
1 4
2
®
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
L e a f S e l e c t
C o l u m n B A [ 2 ] B A [ 1 ]
1 0 n / a A [ 2 8 ]
A [ 2 7 ]
1 0 n / a
A [ 2 9 ] A [ 2 9 ]
1 0
A [ 2 8 ] A [ 2 7 ]
1 0
A [ 3 0 ] A [ 2 9 ]
1 0
1 0 A [ 2 9 ] A [ 2 8 ]
L e a f S e l e c t
C o l u m n B A [ 2 ] B A [ 1 ]
A [ 1 4 ]
1 0 n / a
A [ 1 4 ]
1 0 n / a
1 0 A [ 1 5 ] A [ 1 4 ]
A [ 1 5 ] A [ 1 4 ]
1 0
1 0 A [ 1 5 ] A [ 1 4 ]
A [ 1 5 ] A [ 1 4 ]
1 0
T a b l e 3 5 7 i l l u s t r a t e s
T o t a l M e m o r y S i z e
B A [ 0 ]
5 1 2 M
A [ 2 7 ]
1 G
2 5 6 M
A [ 2 6 ]
5 1 2 M
1 G
A [ 2 7 ]
2 G
5 1 2 M
A [ 2 6 ]
1 G
2 G
A [ 2 8 ]
4
1 G
A [ 2 7 ]
2 G
T o t a l M e m o r y S i z e
B A [ 0 ]
5 1 2 M
A [ 1 3 ]
1 G
2 5 6 M
A [ 1 3 ]
5 1 2 M
1 G
A [ 1 3 ]
2 G
5 1 2 M
A [ 1 3 ]
1 G
2 G
A [ 1 3 ]
4
1 G
A [ 1 3 ]
2 G
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
a
a