UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 523

• Manufacturer Part Number: UPD78F0838
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

(1) Start condition ~ address
Notes 1. To cancel master wait, write “FFH” to IIC0 or set WREL0.
WREL0
INTIIC0
WREL0
INTIIC0
ACKD0
ACKE0
MSTS0
ACKD0
ACKE0
MSTS0
WTIM0
WTIM0
Processing by master device
Transfer lines
Processing by slave device
SPD0
TRC0
SDA0
SPD0
TRC0
STD0
STD0
STT0
SPT0
SCL0
STT0
SPT0
IIC0
IIC0
2. Write data to IIC0, not setting WREL0, in order to cancel a wait state during slave transmission.
(When 8-Clock Wait Is Selected for Master, 9-Clock Wait Is Selected for Slave) (1/3)
H
H
H
L
L
L
L
L
L
IIC0
AD6 AD5 AD4 AD3 AD2 AD1 AD0
Figure 14-28. Example of Slave to Master Communication
1
address
2
Receive
Transmit
3
CHAPTER 14 SERIAL INTERFACE IIC0
Preliminary User’s Manual U19748EJ1V0UD
4
5
6
7
R
8
ACK
9
IIC0
IIC0
D7
Receive
Note 1
1
Transmit
data Note 2
FFH Note 1
D6
2
D5
3
D4
4
D3
5
D2
6
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