Operation Of General-Purpose Communication; Read Data From An External Device; Write Data Into An External Device - Panasonic FP7 Series User Manual

9.1 Operation of General-Purpose Communication

9.1 Operation of General-Purpose Communication

9.1.1 Read Data from an External Device

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Read data from a partner device
In general-purpose communication, communication is executed by sending commands that suit
the partner device, and receiving responses. Command messages are sent by formulating a
data table for message in accordance with the protocol, on the given data register, and
subsequently executing GPSEND instruction.

9.1.2 Write Data into an External Device

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Write data into a partner device
In general-purpose communication, communication is executed by sending commands that suit
the partner device, and receiving responses. Command messages are sent by formulating a
data table for message in accordance with the protocol, on the given data register, and
subsequently executing GPSEND instruction.
● There is no relevance between the operation of transmission by GPSEND instruction and the
operation of reception by GPRECV instruction. The CPU with built-in SCU unit is always clear
to receive data.
9-2 WUME-FP7COM-07