Intel 81342 Developer's Manual page 492

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F i g u r e 5 8 . H a r d w a r e A s s i s t X O R U n i t
X O R e d D a t a
®
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
4 9 2
N e w D a t a
E a c h e x i s t i n g b i t i s X O R e d w i t h n e w d a t a
a n d s t o r e d b a c k t o t h e s a m e b i t l o c a t i o n
. .
.
®
I n t e l
8 1 3 4 1 a n d 8 1 3 4 2 — A p p l i c a t i o n D M A U n i t
B y t e 1 = B y t e 1
B l o c k 1
b y t e s 1 - 8
b y t e s 9 - 1 6
b y t e s 1 0 2 1 - 1 0 2 4
B y t e 1 0 2 4 = B y t e 1 0 2 4
B y t e 1 0 2 4
B l o c k 1
B l o c k 2
B y t e 1
B y t e 1
B y t e 1
B l o c k 2 B l o c k 3 B l o c k 4
B y t e 1 0 2 4
B y t e 1 0 2 4
B l o c k 3
B l o c k 4
B 6 2 2 7 - 0 1
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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