IBM Series 1 User Manual page 51

I'V
I
~
~
en
>'
~
~
•
o
o
w
w
Cycle steal request in or
Request in bus
Poll identifier
I
U _ _ _
Poll
~--------
"\ l"
Pollp.opagate
~ =]\~T2~-------------------
~~-
_ _ _ _ _
~I ~I
Timings:
T1
>
lOOns
T2
<
200 ns
CT1
>
180 ns
~
- - - - - - - - - - - - - - - -
Legend:
CT
=
channel times
T
=
attachment controlled times
LVS
=
last valid signal, occurring in time, of a group of
signals being activated on the channel. The group
is linked by short dotted lines on the timing diagram.
LIS
=
last invalid signal, occurring in time, of a group of
signals being deactivated on the channel. The group
is linked by short dotted lines on the timing diagram.
~
.""
'"
~~
,",11'
....
~.
I.Q
~
"
(1)
tv
I
....
W
•
too
o ....,
.....
pO
"
o
"Q
S»
\Q
S»
rt
(1)
rt ....
iii ....
t'J
\Q
~
....
S»
Io.Q
"
~
..