HD64F2638F20J Datasheet, PDF (277/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 9 I/O Ports
9.2 Port 1
Note: The PPG output is not implemented in the H8S/2635 Group.
9.2.1 Overview
Port 1 is an 8-bit I/O port. Port 1 pins also function as PPG output pins (PO15 to PO8), TPU I/O
pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1,
TIOCB1, TIOCA2, and TIOCB2), external interrupt pins (IRQ0 and IRQ1), and address bus
output pins (A23 to A20). Port 1 pin functions change according to the operating mode.
Figure 9-1 shows the port 1 pin configuration.
Port 1
Port 1 pins
Pin functions in modes 4 to 6
P17 (I/O) / PO15 (output) / TIOCB2 (I/O) / TCLKD (input)
P16 (I/O) / PO14 (output) / TIOCA2 (I/O) / IRQ1 (input)
P15 (I/O) / PO13 (output) / TIOCB1 (I/O) / TCLKC (input)
P14 (I/O) / PO12 (output) / TIOCA1 (I/O) / IRQ0 (input)
P13 (I/O) / PO11 (output) / TIOCD0 (I/O) / TCLKB (input) / A23 (output)
P12 (I/O) / PO10 (output) / TIOCC0 (I/O) / TCLKA (input) / A22 (output)
P11 (I/O) / PO9 (output) / TIOCB0 (I/O) / A21 (output)
P10 (I/O) / PO8 (output) / TIOCA0 (I/O) / A20 (output)
Pin functions in mode 7
P17 (I/O) / PO15 (output) / TIOCB2 (I/O) / TCLKD (input)
P16 (I/O) / PO14 (output) / TIOCA2 (I/O) / IRQ1 (input)
P15 (I/O) / PO13 (output) / TIOCB1 (I/O) / TCLKC (input)
P14 (I/O) / PO12 (output) / TIOCA1 (I/O) / IRQ0 (input)
P13 (I/O) / PO11 (output) / TIOCD0 (I/O) / TCLKB (input)
P12 (I/O) / PO10 (output) / TIOCC0 (I/O) / TCLKA (input)
P11 (I/O) / PO9 (output) / TIOCB0 (I/O)
P10 (I/O) / PO8 (output) / TIOCA0 (I/O)
Figure 9-1 Port 1 Pin Functions
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 227 of 1458