HD64F38602R Datasheet, PDF (151/552 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 8 I/O Ports
Section 8 I/O Ports
The H8/38602R Group has 13 general I/O ports and six general input-only ports. Port 8 is a large
current port, which can drive 15 mA (@V_OL = 1.0 V) when a low level signal is output. Any of
these ports can become an input port immediately after a reset. They can also be used as I/O pins
of the on-chip peripheral modules or external interrupt input pins, and these functions can be
switched depending on the register settings. The registers for selecting these functions can be
divided into two types: those included in I/O ports and those included in each on-chip peripheral
module. General I/O ports are comprised of the port control register for controlling inputs/outputs
and the port data register for storing output data and can select inputs/outputs in bit units.
For details on the execution of bit manipulation instructions to the port data register (PDR), see
section 2.8.3, Bit-Manipulation Instruction.
For details on block diagrams for each port, see appendix B.1, I/O Port Block Diagrams.
8.1 Port 1
Port 1 is an I/O port also functioning as an asynchronous event counter input pin, timer W I/O pin,
RTC output pin, CLKOUT output pin, and interrupt input pin. Figure 8.1 shows its pin
configuration.
P12/IRQAEC/AECPWM
P11/AEVL/FTCI (/IRQ1)
P10/AEVH/FTIOA/TMOW/CLKOUT
Figure 8.1 Port 1 Pin Configuration
Port 1 has the following registers.
• Port data register 1 (PDR1)
• Port control register 1 (PCR1)
• Port pull-up control register 1 (PUCR1)
• Port mode register 1 (PMR1)
Rev. 3.00 May 15, 2007 Page 119 of 516
REJ09B0152-0300