Datasheet

Section 17 I
2
C Bus Interface (IIC)
Rev. 3.00 Sep. 28, 2009 Page 552 of 910
REJ09B0350-0300
SCL
SDA
IRIC
User processing
Clear IRIC
213A
8
123
9
8
Clear IRIC
When WAIT = 1, and FS = 0 or FSX = 0 (I
2
C bus format, wait inserted)
SCL
SDA
IRIC
User processing
Clear IRICWrite to ICDR (transmit)
or read from ICDR (receive)
1A
8
198
Clear IRIC
(a) Data transfer ends with ICDRE = 0 at transmission, or ICDRF = 0 at reception.
(b) Data transfer ends with ICDRE = 1 at transmission, or ICDRF = 1 at reception.
Figure 17.19 IRIC Setting Timing and SCL Control (2)
SCL
SDA
IRIC
User processing
Clear IRIC
187
412387
When FS = 1 and FSX = 1 (clocked synchronous serial format)
(a) Data transfer ends with ICDRE = 0 at transmission, or ICDRF = 0 at reception.
SCL
SDA
IRIC
User processing
Clear IRIC Clear IRIC
Write to ICDR (transmit)
or read from ICDR (receive)
87214
3
187
(b) Data transfer ends with ICDRE = 1 at transmission, or ICDRF = 1 at reception.
Figure 17.20 IRIC Setting Timing and SCL Control (3)