IBM Series 1 User Manual page 68

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Negative active signal
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-
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+ Cycle steal status bus
bit 0
+ Cycle steal status bus
bit 1
Primary
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- -
_ + System reset
-
-
- Power on reset
-
- IPL complete -
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Inverter
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inverter
-
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inverter
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Inverter
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inverter
IPL tag latch
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latch
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Enable IPL
-
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OR Reset
- Abort
..........
IPL
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cycle steal
request and
transfers
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