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CHAPTER 12 SERIAL INTERFACE FUNCTION
(3) Transfer direction specification
In addition to the 7-bit address data, the master device sends 1 bit that specifies the transfer direction. When
this transfer direction specification bit has a value of 0, it indicates that the master device is transmitting data to
a slave device. When the transfer direction specification bit has a value of 1, it indicates that the master device
is receiving data from a slave device.
Figure 12-28. Transfer Direction Specification
SCL
1
2
3
4
5
6
7
8
9
AD6
AD5
AD4
AD3
AD2
AD1
AD0
R/W
SDA
Transfer direction specification
Note
INTIIC
Note INTIIC is not generated if data other than a local address or extension code is received during slave
device operation.
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Preliminary User's Manual U15905EJ1V0UD
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