Datasheet

Section 10 I/O Ports
REJ09B0465-0300 Rev. 3.00 Page 313 of 982
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
10.8 Port A
Port A consists of general I/O pins that are also used as analog input pins for A/D converter unit 1
and unit 2 (only in the H8S/20223 and H8S/20235 Groups).
The functions of PA4 to PA7 can be selected with the peripheral function mapping register of the
PMC (except for the H8S/20223 and H8S/20235 Groups).
For selection of functions by the peripheral function mapping controller, see section 9, Peripheral
I/O Mapping Controller. Figure 10.8 shows the pin configuration of port A.
Port A
PA7/AN3_2
PA6/AN2_2
PA5/AN1_2
PA4/AN0_2
PA3/AN11
PA2/AN10
PA1/AN9
PA0/AN8
PA 7
PA 6
PA 5
PA 4
PA3/AN11
PA2/AN10
PA1/AN9
PA0/AN8
PA 7
PA 6
PA 5
PA 4
Port A
H8S/20223 Group
H8S/20235 Group
H8S/20203 Group
H8S/20215 Group
Port A
H8S/20103 Group
H8S/20115 Group
Figure 10.8 Port A Pin Configuration
Port A has the following registers.
• Port mode register A (PMRA)
• Port control register A (PCRA)
• Port data register A (PDRA)
• Port pull-up control register A (PUCRA)