ESI VideoBridge 2150, Service Manual

Page: 117 / 332

2 . 1 . 6 Handler Mode
< 8 > < bl u e > < CODE >
D i s a b l e s CRT d i sp l a y f o r u se w i t h t h e H a n d l e r
I n t e r f a c e op t i o n a n d l oc k s t h e k e y board . T h i s code prov i de s f a s t e s t
V i d e o B r i d g e m e a s u r e m e n t s p e e d f o r h a n d l e r o p e r a t i o n . T h e d i s p l a y
c l e a r s a n d s h o w s " N ow I n H a n d l e r M o d e " . T o d e a c t i v a t e 8 C O D E ,
mome n ta r i l y g ro u n d P i n 2 1 o f t h e H a n d l e r I n t e r fa c e C a rd ' s re a r p a n e l
conn e c t o r . F o r m o r e i n f orma t i on o n h a nd l e r ope ra t i on , s e e se c t i on A . I .
< - > < 8 > < b l u e > < C O D E > - D i s p l a y s t h e B I N n u m b e r i n l a r g e d i s p l a y
c ha ra c te r s , m e a s u re d va l u e s i n s ma l l c h a r a c te rs a n d l oc k s t he k e y b o a r d
f o r u se w i t h t he H a n d l e r I n te r fa ce op t i on ( s e e F i g u r e 2 - 1 3 ) . D i sp l a y
upda t e i n c re a s e s mea su reme n t t i me b y a b o u t 1 1 0ms c ompa r e d t o n o rma l
h a n d l e r opera t i o n . U s e o f pe r i p he ra l dev i ce s ( su c h a s a p r i n t e r ) a l s o
i n c re a s e s me a su re me n t t i me . D e a c t i va te
-
8 CODE i n t he s a me m a n n e r a s
- 8 CODE . B o t h 8 CODE a n d - 8 CODE p u t t h e V i de oB r i dg e i n t o S I NG L E mode .
NOTE :
Ne i t h e r 8 C ODE n o r - 8 CODE c a n be s a v e d i n N o n-V o l a t i l e
M e m o ry ( s e e S e c t i on A . 3 ) .
< 2 > < 6 > < b l u e > < C OD E > - W h e n i n S ORT mode , 2 6 CODE d i sp l a y s t h e top
a n d b o t t o m d i sp l a y va l ues i n s ma l l c ha ra c te rs ( se e F i g u r e 2 - 1 3 ) . T h e
a p p r op r i a t e b i n r e l a y i s a c t i v a t e d i f t h e H a n d l e r I n t e r f a c e i s
i n s ta l l e d . T h e B U S Y s i gna l i s n o t a s s e r t e d i n t h i s mode . T he key board
i s not l oc k e d u n d e r t h i s mode . T h i s mode i s c l e a re d by -26 COD E .
H Z = 1 0 0 0 . I) N O M - F A Ii: A D S
1 0 0 0
M V
S I N G L E
S O R T
S E T L = 0 0 5 0 H S I N T G R = I) O � D M S
A Y E - l
AUT O B l At
O F F
E I t'i 0
1 . 0 0 & 211
•
(1 0 0 2 :,
I ii H A tl Il L E R N O D E
F i gure 2 -1 3 .
-8
CODE a nd 2 6 CODE D i sp lay Forma t
e l s l i
2 - 7 9
2 1 5 0 / 2 1 6 0 5 /8 5