IBM Series 1 User Manual page 55

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Normal cycle steal usage
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Status bus bit 0 or 1
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IPL cycle steal requests and transfers
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Timings:
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T4
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CT3
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200 ns
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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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