Xycom XVME-100, Manual

Page: 14 / 60

X V M E - 1 0 0 M a n u a l
March, 1987
Jumper Description
Section
J40
M e m o r y Ty p e - b a n k 1 2.4.4
J41
Memory T y p c - b a n k 1 2.4.4
J42
M e m o r y T y p c - b a n k 1 2.4.4
J43
Memory T y p c - b a n k 1 2.4.4
J44 M e m o r y Ty p e - b a n k 1
2.4.4
J45
M e m o r y Ty p e - b a n k 1
2.4.4
J46
M e m o r y Ty p e - b a n k 1
2.4.4
J47
Sizc Scicct - b a n k 2
2.4.1
J48
Size Scicct - b a n k 2
2.4.1
J49
Size Select - b a n k 2 2.4.1
J50 Sizc Select - b a n k 1
2.4.1
J51 Size Select - b a n k 1
2.4.1
J52 Size Select - b a n k 1
2.4.1
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•
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Ta b l e 2-1. J u m p e r L i s t ( c o n t i n u e d )
2.4 J U M P E R D E S C R I P T I O N S
The t w o b a n k s a r c i n d e p e n d e n t l y c o n f i g u r a b l e , v i a j u m p e r s t o d e f i n e f i v e d i f f e r e n t
memory m o d u l e parameters, these parameters arc:
1. V M E A d d r e s s / M e m o r y C h i p Sizc
2. A d d r e s s M o d i f i e r D e c o d e
3. M e m o r y D e v i c e Speed
4. M e m o r y D e v i c e P i n o u t
5. M e m o r y B a c k u p P o w e r
The f o l l o w i n g f i v e s u b s e c t i o n s e x a m i n e s t h e s e j u m p e r o p t i o n s i n c l o s e r
showing s p e c i f i c a l l y w h e n a n d h o w j u m p e r s should be c o n f i g u r e d .
2.4.1 V M E A d d r e s s / M e m o r y C h i p Size
12 j u m p e r s e x i s t f o r each b a n k ( 2 4 t o t a l ) t o d e f i n e t h e V M E b u s address a n d m e m o r y
chip size. T a b l e 2 - 2 l i s t s t h e j u m p e r s a n d t h e i r d e f i n i t i o n s . T h e b a n k w i l l o c c u p y
a V M E b u s a d d r e s s s p a c e o f f o u r t i m e s t h e m e m o r y c h i p s i z e . T h e b a n k m u s t b e
assigned t o a b o u n d a r y w h i c h i s a m u l t i p l e o f f o u r t i m e s t h e m e m o r y c h i p size.
2-5