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2
Section 17 I
C Bus Interface (IIC)
First frame
SCL
7
IRIC
(a) Interrupt flag timing for request to write operation reservation commands
SCL
7
MRREQ*
SRREQ*
(b) Interrupt flag timing for request to read receive data in master or slave mode
SCL
7
MTREQ*
STREQ*
(c) Interrupt flag timing for request to write transmit data in master or slave mode
Note: * Flags MRREQ, SRREQ, MTREQ, and STREQ may not change depending on the conditions.
Figure 17.16 Example of Interrupt Flag Timing of Operation Reservation Adapter
Rev. 3.00 Jan 25, 2006 page 530 of 872
REJ09B0286-0300
8
9
Read from or write to ICCMD
8
9
Read from ICDRX
8
9
Write to ICDRX
Second and subsequent frames
1
2
Read from or write to ICCMD
1
2
1
2
Write to ICDRX
8
9
8
9
Read from ICDRX
8
9
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