348
CHAPTER 18 I
2
C BUS MODE (
µ
PD784225Y SUBSERIES ONLY)
User’s Manual U12697EJ3V0UM
Figure 18-21. Slave
→
Master Communication Example
(When Master and Slave Select 9 Clock Waits) (1/3)
(1) Start condition - Address
IIC0
←
Address
IIC0
←
FFH
Note
IIC0
ACKD0
STD0
SPD0
WTIM0
ACKE0
MSTS0
STT0
SPT0
WREL0
INTIIC0
TRC0
SCL0
SDA0
IIC0
ACKD0
STD0
SPD0
WTIM0
ACKE0
MSTS0
STT0
SPT0
WREL0
INTIIC0
TRC0
L
H
H
L
L
L
L
Note
H
H
1
A6
A5
A4
A3
A2
D6
D7
D5
D4
D3
D2
A1
A0
R
IIC0
←
Data
Start condition
2
3
4
5
6
1
2
3
4
5
6
7
8
9
Master device process
Slave device process
Transfer lines
Note
Release the slave wait by either IIC0
←
FFH or setting WREL0.