IBM Series 1 User Manual page 215

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~ Other device requests may be present
Cycle steal request in or
Request in bus
-----fTl;r
Poll identifier
I
Poll
~~-------
~ll_~p~ ~ l=~~\~TI~~~~~~~~~~~~~~~~~~~
-~- _ _ _ _ ----.:~I ~I
Timings:
T1
>
100 ns
T2
<
200 ns
CT1
>
180 ns
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I
- - - - - - - - - - - - - - - -
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.
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