Citizen CT-S280 - Interfacing Phases

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5.2.2 Interfacing Phases
Interfacing ineachcommunication modeis divided into severalphases.In addition,there is aphase formode initialization, as
well asaphaseformodeswitching.Interface signals maydifferinnameand function for different modes anddifferentphases.
Aborted
Transfer
Termination from
OtherModes
(exceptEPP)
Compatibility Mode
*Forward
Data
Transfer
Host Xmits
Data
End forward
Data Xfer
Forward Idle
Termination
Event 1
Failed
Negotiation
Event 6
Negotiation
Event 6
Event 11
Host Busy
Data Not
Available
Event 11
Reverse
Data
Transfer
Host Busy
Data
Available
Event 7
Event 7
Event 18
Reverse Idle Interrupt
Host
Event 21