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10.5 Special Input Signal Requirements

Special input signals can only be reliably recognised by the SP-ICE-3 Card if they meet certain timing requirements.

The timing requirements are, however, independent of the port/pin-mapping selected for a given signal.

Signal Timing Requirements

Signal(s)

Min. Hold Time

Description

Process Control Input Signals:

Start Mark, Part Sensor, Abort Mark

5µs

Each of these signals must be held in the active state for at least 5µs for the card to recognise them.