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Asynchronous Interface Events
Asynchronous Events are those iPort/AFM interface activities initiated by the
iPort/AFM I
2
C Host Adapter in response to activities on the I
2
C Bus.
Slave Transmit Request
This event is caused by the reception of an I
2
C Bus Slave Transmit message directed
at the current iPort/AFM’s own Slave address.
Prompt: /STR[CR] ‘Slave Transmit Request
Command: /Stext[CR] ‘Slave Transmit Text
The normal Host computer response is to send a Slave Transmit Text (/Stext[CR])
command.
Note
: Upon receiving a Slave Transmit request from a Master Receiver device on
the I
2
C Bus, iPort/AFM outputs a Slave Transmit Request to its Host device, and
initiates an I
2
C Clock Stretch (SCL Low) until a Slave Transmit Text command is
received from the Host computer. While clock stretching, no other messages can be
transmitted on the I
2
C Bus.
Slave Receive Complete
This event is caused by the reception of an I
2
C Bus Slave Receive message directed
at the current iPort/AFM’s own Slave address.
The received text is a representation of the data bytes within the Slave Receive
message. The format of this data is controlled by the current setting of the Hex Only
Display Control .
Prompt: /SRCtext[CR] ‘Slave Receive Complete
Command: None Required
General Call Receive Complete
This event is caused by the reception of an I
2
C Bus Slave Receive message directed
at the I
2
C General Call Address (00), when iPort/AFM’s General Call recognition is
enabled.