Datasheet

Section 24 A/D Converter
Page 848 of 982 REJ09B0465-0300 Rev. 3.00
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
24.8.7 Notes on Analog Input Pins
Analog input pins (AN0 to AN11, AN0_2 to AN3_2) are multiplexed with general I/O ports.
Accordingly, if the direction of input or output of the general I/O port is changed or the output
value of the general I/O port is changed during A/D conversion, the conversion accuracy may be
affected.
Before using an analog input pin multiplexed with general I/O port as a general I/O port, influence
on the A/D conversion accuracy should be evaluated carefully.