Datasheet

Section 21 I
2
C Bus Interface 2 (IIC2)
REJ09B0465-0300 Rev. 3.00 Page 731 of 982
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
Vcc Vcc
SCL in
SCL out
SCL
SDA in
SDA out
SDA
SCL
(Master)
(Slave 1)
(Slave 2)
SDA
SCL in
SCL out
SCL
SDA in
SDA out
SDA
SCL in
SCL out
SCL
SDA in
SDA out
SDA
Figure 21.2 External Circuit Connections of I/O Pins
Table 21.1 summarizes the pin configuration used by the I
2
C bus interface 2.
Table 21.1 Pin Configuration
Pin Name I/O Function
SCL I/O IIC serial clock input/output
SDA I/O IIC serial data input/output
Note: When the IIC2 function is selected, use the PMC to allocate the SCL and SDA pin functions
to P57 and P56, respectively.