Panasonic MN101C77C - Manual (Page 418)

Chapter 12 Serial Interface 3
Operation XII - 32
Figure 12-3-16 Master Transmission Timing
„ Master Transmission Timing
SDA
SCL
Interrupt
1 2 . . . . 8 ACK 1 2 8
IICBSY
Set data to SC3TRB Clear IICBSY flag
(1) (2) (3) (4) (5) (6)
Set data to SC3TRB
ACK
8-bit
transmission
8-bit
transmission
(1) Output start condition.
(2) Bus released period, ACK bit is received.
(3) Interrupt transaction.
- Disable start condition : SC3STE = 1
→
0
- Start communication : set data to SC3TRB
(4) Receive ACK bit.
(5) Interrupt transaction.
- Finish communication : clear the IICBSY flag.
(6) Generates stop condition.