tmp89fm42a TOSHIBA Semiconductor CORPORATION, tmp89fm42a Datasheet - Page 294

• Manufacturer Part Number: tmp89fm42a
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

RA002
18.1.2
The free data format is for communication between a master and slave.
In the free data format, the slave address and the direction bit are processed as data.
Free data format
(a) Addressing format
(b) Addressing format (with restart)
S
R/W
ACK
P
S
S
Slave address
Slave address
(a) Free data format
: Start condition
: Direction bit
: Acknowledge bit
: Stop condition
8 bits
8 bits
S
R/W
ACK
P
1
S
1
Figure 18-2 Data Format of I
: Start condition
: Direction bit
: Acknowledge bit
: Stop condition
W
W
R
Figure 18-3 Free Data Format
R
/
/
C
Data
1
A
C
K
1
A
K
8 bits
1
1 to 8 bits
1 to 8 bits
1 or more
Data
Data
A
C
K
1
Page 275
1 to 8 bits
1 or more
Data
C
A
C
K
1
A
K
1
S
1 to 8 bits
Slave address
1 or more
Data
8 bits
C
1
A
K
1
2
C Bus
1 to 8 bits
Data
W
1
C
R
A
K
/
1
A
C
K
P
1 to 8 bits
1 or more
1
A
C
K
Data
P
C
1
A
K
TMP89FM42A
P