Input/Output Pins - Renesas H8S/2100 Series Hardware Manual

18.2

Input/Output Pins

Table 18.1 summarizes the input/output pins used by the I
One of three pins can be specified as SCL and SDA input/output pin for IIC_0 and IIC_1. Two or
more input/output pins should not be specified for one channel.
For the method of setting pins, see section 7.3.2, Port Control Register 1 (PTCNT1).
Table 18.1 Pin Configuration
Channel Symbol*
0 SCL0
SDA0
1 SCL1
SDA1
2 SCL2
SDA2

ExSCLA
ExSDAA
ExSCLB
ExSDAB
Note: In the text, the channel subscript is omitted, and only SCL and SDA are used.
*
Input/Output Function
Input/Output Serial clock input/output pin of IIC_0
Input/Output Serial data input/output pin of IIC_0
Input/Output Serial clock input/output pin of IIC_1
Input/Output Serial data input/output pin of IIC_1
Input/Output Serial clock input/output pin of IIC_2
Input/Output Serial data input/output pin of IIC_2
Input/Output Serial clock input/output pin of IIC_0 or IIC_1
Input/Output Serial data input/output pin of IIC_0 or IIC_1
Input/Output Serial clock input/output pin of IIC_0 or IIC_1
Input/Output Serial data input/output pin of IIC_0 or IIC_1
Section 18 I
2
C bus interface.
Rev. 1.00 Apr. 28, 2008 Page 533 of 994
2
C Bus Interface (IIC)
REJ09B0452-0100