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SCL0
SDA0
When the local address is received, ACK is automatically generated, regardless of the value of ACKE0. When an
address other than that of the local address is received, ACK is not generated (NACK).
When an extension code is received, ACK is generated if ACKE0 is set to 1 in advance.
How ACK is generated when data is received differs as follows depending on the setting of the wait timing.
• When 8-clock wait state is selected (bit 3 (WTIM0) of IICC0 register = 0):
By setting ACKE0 to 1 before releasing the wait state, ACK is generated at the falling edge of the eighth clock of
the SCL0 pin.
• When 9-clock wait state is selected (bit 3 (WTIM0) of IICC0 register = 1):
ACK is generated by setting ACKE0 to 1 in advance.
496
CHAPTER 12 SERIAL INTERFACE IIC0
Figure 12-17. ACK
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2
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A6
A5
A4
A3
A2
User's Manual U17854EJ9V0UD
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8
9
A1
A0
R/W
ACK
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