Intel 81342 Developer's Manual page 1025

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P e r i p h e r a l R e g i s t e r s — I n t e l
2 1 . 6 . 1
I n t e r n a l U n i t s
2 1 . 6 . 1 . 1
A p p l i c a t i o n D M A 0 - 2
T h e 8 1 3 4 1 a n d 8 1 3 4 2 c o n t a i n s t h r e e i n s t a n c e s o f t h e A p p l i c a t i o n D M A ( A D M A ) . T h e s e
t h r e e u n i t s h a v e i n d i v i d u a l 5 1 2 B y t e P M M R R e g i s t e r s p a c e t h a t i s a c c e s s i b l e o n t h e
i n t e r n a l b u s . T h e r e g i s t e r s o f f s e t s s h o w n i n
a d d r e s s o f f s e t s h o w n b e l o w i n
U s e t h e f o l l o w i n g e q u a t i o n t o c a l c u l a t e t h e a c t u a l r e g i s t e r a d d r e s s :
I n t e r n a l B u s A d d r e s s = P M M R B A R + A D M A x B a s e A d d r e s s O f f s e t + R e g i s t e r O f f s e t .
T a b l e 6 3 9 . A D M A x B a s e A d d r e s s O f f s e t .
U n i t
A D M A 0
A M D A 1
A D M A 2
T a b l e 6 4 0 . A p p l i c a t i o n D M A U n i t ( S h e e t 1 o f 2 )
A D M A C h a n n e l C o n t r o l R e g i s t e r x — A C C R x
A D M A C h a n n e l S t a t u s R e g i s t e r x — A C S R x
A D M A D e s c r i p t o r A d d r e s s R e g i s t e r x — A D A R x
R e s e r v e d
I n t e r n a l I n t e r f a c e P a r i t y C o n t r o l R e g i s t e r x — I I P C R x
R e s e r v e d
R e s e r v e d
A D M A N e x t D e s c r i p t o r A d d r e s s R e g i s t e r x — A N D A R x
A D M A D e s c r i p t o r C o n t r o l R e g i s t e r x — A D C R x
C R C A d d r e s s / M e m o r y B l o c k F i l l D a t a R e g i s t e r x — C A R M D x
A D M A B y t e C o u n t R e g i s t e r x — A B C R x
D e s t i n a t i o n L o w e r A d d r e s s R e g i s t e r x — D L A D R x
D e s t i n a t i o n U p p e r A d d r e s s R e g i s t e r x — D U A D R x
S o u r c e L o w e r A d d r e s s R e g i s t e r 0 _ x — S L A R 0 _ x
S o u r c e U p p e r A d d r e s s R e g i s t e r 0 _ x — S U A R 0 _ x
S o u r c e L o w e r A d d r e s s R e g i s t e r 1 _ x — S L A R 1 _ x
S o u r c e U p p e r A d d r e s s R e g i s t e r 1 _ x — S U A R 1 _ x
S o u r c e L o w e r A d d r e s s R e g i s t e r 2 _ x — S L A R 2 _ x
S o u r c e U p p e r A d d r e s s R e g i s t e r 2 _ x — S U A R 2 _ x
S o u r c e L o w e r A d d r e s s R e g i s t e r 3 _ x — S L A R 3 _ x
S o u r c e U p p e r A d d r e s s R e g i s t e r 3 _ x — S U A R 3 _ x
S o u r c e L o w e r A d d r e s s R e g i s t e r 4 _ x — S L A R 4 _ x
S o u r c e U p p e r A d d r e s s R e g i s t e r 4 _ x — S U A R 4 _ x
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
T a b l e 6 3 9
A D M A x B a s e 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 )
R e g i s t e r D e s c r i p t i o n ( N a m e )
T a b l e 6 4 0
a r e r e l a t i v e t o t h e A D M A b a s e
+ 0 0 0 H
+ 2 0 0 H
+ 4 0 0 H
R e g i s t e r
A D M A R e g i s t e r O f f s e t
S i z e i n
( R e l a t i v e t o A D M A x B a s e
B i t s
A d d r e s s O f f s e t )
3 2
3 2
3 2
x
+ 0 0 C t h r o u g h 0 1 4
3 2
3 2
3 2
3 2
3 2
3 2
3 2
3 2
3 2
3 2
3 2
3 2
3 2
3 2
3 2
3 2
3 2
3 2
3 2
®
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
+ 0 0 0
+ 0 0 4
+ 0 0 8
+ 0 1 8
+ 0 1 C
+ 0 2 0
+ 0 2 4
+ 0 2 8
+ 0 2 C
+ 0 3 0
+ 0 3 4
+ 0 3 8
+ 0 3 C
+ 0 4 0
+ 0 4 4
+ 0 4 8
+ 0 4 C
+ 0 5 0
+ 0 5 4
+ 0 5 8
+ 0 5 C
+ 0 6 0
D e v e l o p e r ' s M a n u a l
1 0 2 5

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