Port 1; Overview - Renesas H8S/2319 series Hardware Manual

8.2

Port 1

8.2.1

Overview

Port 1 is an 8-bit I/O port. Port 1 pins also function as TPU I/O pins (TCLKA, TCLKB, TCLKC,
TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, and TIOCB2) and
an address bus output function. Port 1 pin functions change according to the operating mode. The
address output or port output function is selected according to the settings of bits A23E to A20E in
PFCR1. Port 1 pins have Schmitt-trigger inputs.
Figure 8-1 shows the port 1 pin configuration.
Port 1 pins
P17 (I/O)/TIOCB2 (I/O)/TCLKD (input)
P16 (I/O)/TIOCA2 (I/O)
P15 (I/O)/TIOCB1 (I/O)/TCLKC (input)
P14 (I/O)/TIOCA1 (I/O)
Port 1
P13 (I/O)/TIOCD0 (I/O)/TCLKB (input)/A23 (output)
P12 (I/O)/TIOCC0 (I/O)/TCLKA (input)/A22 (output)
P11 (I/O)/TIOCB0 (I/O)/A21 (output)
P10 (I/O)/TIOCA0 (I/O)/A20 (output)
Pin functions in modes 4 to 6 *
P17 (I/O)/TIOCB2 (I/O)/TCLKD (input)
P16 (I/O)/TIOCA2 (I/O)
P15 (I/O)/TIOCB1 (I/O)/TCLKC (input)
P14 (I/O)/TIOCA1 (I/O)
P13 (I/O)/TIOCD0 (I/O)/TCLKB (input)/A23 (output)
P12 (I/O)/TIOCC0 (I/O)/TCLKA (input)/A22 (output)
P11 (I/O)/TIOCB0 (I/O)/A21 (output)
P10 (I/O)/TIOCA0 (I/O)/A20 (output)
Note: * Modes 6 and 7 are not available in the ROMless versions.
Rev. 5.00, 12/03, page 220 of 1088
Figure 8-1 Port 1 Pin Functions
Pin functions in mode 7 *
P17 (I/O)/TIOCB2 (I/O)/TCLKD (input)
P16 (I/O)/TIOCA2 (I/O)
P15 (I/O)/TIOCB1 (I/O)/TCLKC (input)
P14 (I/O)/TIOCA1 (I/O)
P13 (I/O)/TIOCD0 (I/O)/TCLKB (input)
P12 (I/O)/TIOCC0 (I/O)/TCLKA (input)
P11 (I/O)/TIOCB0 (I/O)
P10 (I/O)/TIOCA0 (I/O)