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CHAPTER 11 SERIAL INTERFACE FUNCTION
User’s Manual U15109EJ3V0UD
391
(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 11-27. Transfer Direction Specification
SCLn
1
SDAn
INTIICn
2
3
4
5
6
7
8
9
AD6
AD5
AD4
AD3
AD2
AD1
AD0
R/W
Transfer direction specification
Note
Note
INTIICn is generated if a local address or extension code is received during slave device operation.
Remark
n = 0, 1