Operating phases – Compuprint 10200 Programmer Manual User Manual
Page 212
Interfaces
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The link protocol is mainly based on the following three phases:
•
Negotiation Phase
This phase is activated always by the host, only when in compatibility mode, and defines:
- whether a bidirectional link protocol can be established.
- the handshaking mode as well as the communications mode to be used.
- the device identification, if supported.
•
Communication Phase
This phase is based on well defined handshaking rules which depend upon the selected link
mode.
•
Termination Phase
This phase is initiated by the host and returns the interface to the compatibility mode.
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