Xycom XVME-682 Manual page 15

X V M E - 6 8 2 Manual
October , 1989
2 . 3 . 4 VMEbus Interrupts (J17, J 1 8 , JI9, J 2 1 , J 2 2 , J 2 3 , J24)
T h e 8 0 2 8 6 C P U chi p c a n recei v e i n terrupts from all s e v e n V M E b u s i n terrupt l e vel s . Each
V M E b u s i n terrupt l e vel h a s a c o r r e s p o n d i n g j u m p e r to e n a b l e or di s abl e i t s functi o n. When
t h e j u m p e r i s IN, t h e i n terrupt l e vel i s e n a b l e d . W h e n t h e j u m p e r i s O U T , t h e i n terrupt level
i s di s abl e d. T abl e 2-2 l i s ts t h e s e v e n j u m p e r s c o r r e s p o n d i n g to the s e v e n V M E b u s interrupt
l e v e l s . The defaul t i s all e x c e p t J 2 0 are IN.
T a b l e 2 - 2 V M E b u s Interrupt Jumpers
JUMPER
J23
J22
J21
J24
J19
J18
J17
2 . 3 . 5 Dual P o r t Interrupts (J1)
O t h e r V M E b u s m a s t e r s m a y i n terrupt the X V M E - 6 8 2 by readi n g any o n e of the l o wer 16
b y t e s of t h e m o d u l e ' s dual - port R A M . J u m p e r JI is u s e d to e n a b l e a n d di s abl e thi s type of
i n terrupt. W h e n JI is IN, the dual - port i n terrupt i s e n a b l e d . W h e n the j u m p e r i s OUT , the
i n terrupt i s di s abl e d. The defaul t i s IN.
2 . 3 . 6 Auxiliary N o n - M a s k a b l c I n t e r r u p t s ( A N M I ) ( J 5 0 , J 5 1 , J 5 2 , J62)
F o u r Auxi l i a ry N o n - M a s k a b l e Interrupts (ANMI ) h a v e b e e n a d d e d to the basi c I B M AT
archi t e ct u re. They are: the Abort Button, the W a t c h d o g T i m er , S Y S F A I L , a n d ACFAIL.
E a c h of t h e four A N M I s i s a s s i g n e d to a j u m p e r that c a n b e u s e d to p e r m a n e n t l y disable its
functi o n. W h e n the j u mper i s IN, the A N M I s o u r c e c a n g e n e r a t e an i n terrupt. When the
j u m p e r i s O U T , t h e A N M I s o u r c e m a y not g e n e r a t e a n interrupt.
T a b l e 2 - 3 l i s ts t h e A N M I s a n d thei r c o r r e s p o n d i n g j u m p e r s . The defaul t i s all IN.
T a b l e 2 - 3 Auxi l i a ry N o n - M a s k a b l e Interrupt Jumpers
JUMPER
J62
J51
J52
J50
2-7
VMEBUS INT
LEVEL
1
2
3
4
5
6
7
A N M I SOURCE
A b o r t Button
ACFAIL
SYSFAIL
W a t c h d o g Timer
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