Datasheet

Table Of Contents
Section 9 I/O Ports
Page 240 of 846 REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
H8S/2215 Group
9.2.4 Port 3 Open-Drain Control Register (P3ODR)
P3ODR controls the PMOS on/off status for each port 3 pin (P36 to P30).
Bit Bit Name Initial Value R/W Description
7 — Undefined Reserved
This bit is undefined and cannot be modified.
6 P36ODR 0 R/W
5 P35ODR 0 R/W
4 P34ODR 0 R/W
3 P33ODR 0 R/W
2 P32ODR 0 R/W
1 P31ODR 0 R/W
Setting a P3ODR bit to 1 makes the corresponding port 3
pin an NMOS open-drain output pin, while clearing the bit
to 0 makes the pin a CMOS output pin.
0 P30ODR 0 R/W
9.2.5 Pin Functions
Port 3 pins also function as SCI I/O pins and external interrupt input pins (IRQ4, IRQ5). Port 3 pin
functions are shown below.
Table 9.10 P36 Pin Function
P36DDR 0 1
Pin function P36 input P36 output
(USB D+ pull-up control output
in HD64F2215U, HD64F2215RU, HD64F2215TU, HD64F2215CU)