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487
■ Register Function
●
Sets transmitted message data (any of 0 to 8 bytes).
Data is transmitted in the order of BYTE0, BYTE1, ..., BYTE7, starting with the MSB.
●
Stores received message data.
Data is stored in the order of BYTE0, BYTE1, ..., BYTE7, starting with the MSB.
Even if the received message data is less than 8 bytes, the remaining bytes of the data register (DTRx), to
which data are stored, are undefined.
Note:
A write operation to this register should be performed in words. A write operation in bytes causes
undefined data to be written to the upper byte at writing to the lower byte. Writing to the upper byte is
ignored.