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M od e l 5363 8
S e rv i c e
8-24
8-1 0 3 . The q u a l i f i e r s e l ectors U 2 1 and U 1 5 select a q ua l i f i e r l i n e to e xa m i n e . R O M o u tputs
08
and
0 1 3
dete rm i ne which q ua l i f i e r i s e n a b led a n d o u t p uts
0 1 0 , 0 1 1 ,
and
0 1 2
a d d ress t h e
s pec i f i c i n p u t l i ne . T h e stat u s of t h a t l i ne i s t h e n f e d t h r o u g h e xc l u s i ve - O R U 2 2 D a n d a pp l i e d
as i n p ut d ata t o q ua l i f i e r f l i p-fl o p U 2 3 A . Provi d i n g U 23A h a s n o t b e e n preset b y the c o m ma n d
e na b l e l i ne , t h e n e xt c l ock p u lse w i l l store t h e q u a l i f i e r b i t , a l l ow i n g t h e q u a l i f i e r d e c o de r
i n puts a n d ad d resses t o c h a n g e .
8- 1 04 . U 22 A i s a n e xc l us i ve - O R g ate w h i c h i s u sed a s a prog ra m m a b l e i n ve rter. P i n 3 i s t h e
l O A D i n put to the state c o u n t e rs, w h i c h d i rects t h e c o u n te rs to i n c re m e n t o n e a d d ress o r
para l l e l load a j u m p a d d ress. T h e status of p i n 1 wi l l dete rm i ne i f t h e q ua l i f i e r b i t at p i n 2 i s
i n ve rted o r n o t i n ve rted at p i n 3 . T h i s a l l ows t h e use o f both h i g h q ua l i f i e rs a n d l o w q ua l i fi e rs to
pe rfor m a j u m p .
8-1 05. State Machine Functions
8-1 0 6 . Ove ra l l , the state m a c h i n e c a n p e rf o r m four basic o p e ra t i o n s . The statu s of R O M
o u t p uts
0 1 4
a n d
0 1 5
d e te r m i n e t h e o p e rati o n m o d e a s f o l l ows:
1 .
2 .
3 .
4 .
Exec ute Com m a n d a n d C o u n t
. . . . . . . . . . . . . . . . . . . . .
Exec ute C o m m a n d a n d J u m p ' G O TO
. . . . . . . . . . . .
Exa m i ne Q u a l i f i e r/J u m p i f H i g h
I
1
Exa m i ne Q u a l i f i e r/J u m p i f low , 0 ,
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
R O M A 1 U30 R O M A5 U 1
0 1 5
0 1 4
0 1 5
0 1 4
0
0
1
0
0
1
1
0
1
0
0
0
8-1 0 7 . T h e fol l owi n g pa rag ra p hs d esc ri be how the state m a c h i ne p e rf o r m s t h e se f u n c t i o ns:
a . Exec ute C o m m a n d a n d C o u n t
b . Exec ute C o m m a n d to G O TO
c. Exa m i ne q u a l i fi e r/J u m p i f Q=1
8-1 08. Exa m i ne q u a l i fi e r/j u m p i f Q=O i s s i m i l a r to e xa m p l e c a b ove and t h e refore i s n ot
necessa ry to i n c l u d e . P o rt i o n s of the f l o w c h a rt i n
Fig ure
8 - 1 0
wi l l be used to i l l ust rate t hese
f u n c t i o n s .
8-1 09. E X E C U T E C O M M A N D A N D C O U N T . An exa m pl e o f e xec ute c o m m a n d a n d c o u n t
c a n be s e e n i n
Fig ure
8 - 5 .
A t a d d ress 247 · o c t 367 , R O M o u t p uts
0 1 5
a n d
0 1 4
a re b o t h 0 setti n g
t h e c o m ma n d a n d c o u n t m o d e . O u tputs
0 1 0
t h ro u g h
0 1 3
a p p l y a b i n a ry a d d re ss s e l ec t i o n o f
0 1 1 0 6 d e c i m a l t o c o m m a n d d e c o d e r U 1 1 . T h e 0 o n U 1 1 p i n 1 8 e n a b le s t h e decod e r, a l l ow i n g
t h e n e xt c l ock p u l se o n p i n 1 9 t o be ro uted t o t h e selected c o m m a n d l i ne , w h i c h i s o u t p u t 6 o r
C l K lATC H .
8-1 1 0 . W i t h R O M
0 1 5 1 0 w ,
U 2 3 A i s preset s o that p i n 5 i s h i g h . T h i s h i g h t o U 22 A p i n 2 , a l o n g
w i t h a l o w f r o m R O M
0 1 4
p i n 1 . d ri ve s U 2 2 A o u t p u t p i n 3 h i g h . The h i g h d i sa b le s t h e lOAD
i n p uts to U 2 5 and U28, thus t h e state c o u n te rs w i l l i n c re m e n t one c o u n t o n t h e next c l oc k
p u l se . T h i s read d resses t h e R O M f ro m 2 4 7 oct 367 t o 248 oct 370 T h e f l o wc h a rt i n
Fig ure
8 -
5.
s h ows a se ries o f c o m m a n d a n d c o u n t state s.
Содержание 5363B
Страница 52: ......
Страница 116: ...Figure 8 9 MAIN PROGRAM I DLE LOOP ROUTI NE FLOWCHART Sheet 1 of 5 See Page 8 39 ...
Страница 118: ...Figure 8 9 MAIN PROG RAM I DLE LOOP ROUTI N E FLOWCHART Sheet 2 of 5 See Page 8 41 ...
Страница 120: ...Figure 8 9 MAIN PROG RAM I DLE LOOP R O U T I N E FLOWC HART Sheet 3 of 5 See Page 8 43 ...
Страница 122: ...Figure 8 9 MAIN PROG RAM I DLE LOOP ROUTIN E FLOWCHART Sheet 4 of 5 See Page 8 45 ...
Страница 126: ...Figure 8 1 0 HP IB PROGRAM HAN DSHAKE R OUTI N E FLOWCHART Sheet 1 of 4 See Page 8 49 ...
Страница 128: ...Figure 8 1 0 HP IB PROG RAM HAN DSHAKE ROUTINE FLOWCHART Sh eet 2 of 4 See Page 8 5 1 ...
Страница 130: ...Figure 8 1 0 HP I B P R O G RAM HAN DSHAKE ROUTI N E FLOWCHART Sheet 3 of 4 See Page 8 53 ...
Страница 131: ...Model 53638 Service Figure 8 1 0 HP IB Program Handshake Routine Flowchart Sheet 4 of 4 1 8 55 ...
Страница 132: ...I I G6 r ciJ I I I I i I I I loY 8 I _ x __ c I I j ...
Страница 134: ... 1 J 0 0 3 RI I H I H tt t tTd ci ...
Страница 137: ... W2 Figure 8 1 1 A 1 Motherboard Schematic Diagram Sheet 2 of 2 ...
Страница 138: ......
Страница 139: ... Model 53638 ServIC8 Figure 8 1 1 AI uclherboard Schematic Sheet if 2 8 59 ...
Страница 142: ... Pl Figure 8 1 2 A2 Digital la Analog Converter Assembly ...
Страница 145: ... 3 A3 Calibrate Assembly Figure 8 1 ...
Страница 146: ...I A 4 A S S Y 05363 60004 SER IES 1 504 SiG 7 _ _ _ _ _ _ _ _ DIGIT eR6 CR tQlG _ do _ d o L_ o l f ...
Страница 150: ... 1 F 6 O 3000 2V I V 1000 Ilk L j 0104 t r r 1 3 I _ _ HH t t1 14 t PIO 4fOO PI roc r I NC ...
Страница 154: ... TI P BODY TIP P R O B E Figure 8 1 6 A 6 A 7 Probe A ssembly m ...