Jumpers - Xycom XVME-682 Manual

X V M E - 6 8 2 Manual
October , 1989

3 . 3 JUMPERS

Pri o r to i n stal l i n g the X V M E - 6 8 2 I/O m o d u l e , several j u mper a n d swi t c h opt i o ns must be
c o n f i g u r e d . T h e conf i g urat i o ns o f t h e j u m p e r s a n d s w i t c h e s a r e d e p e n d e n t u p o n t h e module
capabi l i t i e s requi r ed for a parti c ul a r appl i c at i o n. Appendi x B c o n t a i n s i n f o rmat i o n depicting
t h e defaul t (shi p ped) conf i g urat i o ns for e a c h m o d u l e version.
3 . 3 . 1 Floppy Dri v e Control l e r Address
J u m p e r J 1 cont r ol s w h i c h a d d r e s s r a n g e t h e fl o ppy dri v e control l e r will o c c u p y . Setti n g J 1 to
A will u s e t h e s e c o n d a r y a d d r e s s of 3 7 2 to 3 7 7 H . Setti n g it to B will u s e t h e pri m ary address
of 3 F 2 to 3 F 7 H . PC/A T defaul t i s B.
3 . 3 . 2 Hard Dri v e Control l e r Address
J u m p e r J 2 cont r ol s w h i c h a d d r e s s r a n g e t h e fl o ppy dri v e control l e r will o c c u p y . Setti n g J 1 to
A will u s e t h e s e c o n d a r y a d d r e s s of 1 7 0 to 1 7 7 H . Setti n g it to B will u s e t h e pri m ary address
of 1 F 0 to 1 F 7 H . PC/A T defaul t i s B.
3 . 3 . 3 Read Latch
J u m p e r J 3 cont r ol s w h e t h e r ornot t h e S t a t u s R e a d i s l a t c hed. If t h e j u m p e r i s IN, t h e read is
l a t c h e d . The j u mper O U T will m e a n t h e S t a t u s R e a d i s not l a t c hed (thi s opt i o n i s u s e d with
t h e C o m p a q 2 8 6 ) . The P C / A T defaul t i s IN.
3 . 3 . 4 Hard D i s k Drive
T h e J 4 A setti n g s u p p o r t s a 2- h e a d , 6 1 2 -cyl i n der hard-di s k dri v e wi t h s t a n d a r d s y s t e m setup
for 4 - h e a d , 3 0 6 -cyl i n der dri v e. The J 4 B s e t t i n g ti e s t h e f i r m w a r e s e n s i n g bi t "hi g h" for hard-
. di s k i n terface (PC/ A T default).
3 . 3 . 5 Step Rate
J 5 A s e l e c t s a 1 6 m i c r o s e c . s t e p rat e i n s t e a d of 3 5 m i c r o s e c . s t e p rate, whi l e J 5 B ti e s t h e buffer
m a n a g e r control p r o c e s s o r i n put "hi g h" (PC/ A T default).
3 . 3 . 6 Monitor Address
J u m n p e r J 6 s e l e c t s what a d d r e s s r a n g e t h e E G A Control l e r will u s e . If J 6 i s IN, the EGA
cont r ol l e r I/O a d d r e s s i s s e t to 2 x x H . W h e n O U T , t h e E G A control l e r I/O a d d r e s s set to 3xxH
T h e P C / A T defaul t i s B.
3-5
A r t i s a n T e c h n o l o g y G r o u p - Q u a l i t y I n s t r u m e n t a t i o n ... G u a r a n t e e d 1 ( 8 8 8 ) 8 8 - S O U R C E I