Rev. 1.0, 02/00, page 501 of 1141
SCL
SDA
IRIC
User
processing
Clear
IRIC
Write to ICDR (transmit) or
read ICDR (receive)
1
A
8
7
1
9
8
7
SCL
SDA
IRIC
User
processing
Clear IRIC Write to ICDR (transmit) or
read ICDR (receive)
1
A
8
1
9
8
Clear IRIC
SCL
SDA
IRIC
User
processing
Clear IRIC
Write to ICDR (transmit) or
read ICDR (receive)
1
8
7
1
8
7
(a) When WAIT = 0, and FS = 0 or FSX = 0 (I
2
C bus format, no wait)
(b) When WAIT = 1, and FS = 0 or FSX = 0 (I
2
C bus format, wait inserted)
(c) When FS = 1 and FSX = 1 (synchronous serial format)
Figure 23.12 IRIC Setting Timing and SCL Control