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| HD64F2149 Datasheet, PDF (512/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer | |||
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Vcc
VCC
SCL in
SCL out
SCL
SDA in
SDA out
SDA
(Master)
H8S/2149 chip
SCL in
SCL out
SCL in
SCL out
SCL
SDA
SDA in
SDA out
(Slave 1)
SDA in
SDA out
(Slave 2)
Figure 16.2 I2C Bus Interface Connections
(Example: H8S/2169 or H8S/2149 Chip as Master)
16.1.3 Input/Output Pins
Table 16.1 summarizes the input/output pins used by the I2C bus interface.
Table 16.1 I2C Bus Interface Pins
Channel Name
Abbreviation* I/O
Function
0
Serial clock
SCL0
I/O
IIC0 serial clock input/output
Serial data
SDA0
I/O
IIC0 serial data input/output
Formatless serial VSYNCI
clock
Input
IIC0 formatless
serial clock input
1
Serial clock
SCL1
I/O
IIC1 serial clock input/output
Serial data
SDA1
I/O
IIC1 serial data input/output
Note: * In the text, the channel subscript is omitted, and only SCL and SDA are used.
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