D12320VF25V Datasheet, PDF (256/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 8 I/O Ports
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
Port 1 pins
Pin functions in mode 7^*
P17 (I/O)/TIOCB2 (I/O)/TCLKD (input)
P17 (I/O)/TIOCB2 (I/O)/TCLKD (input)
P16 (I/O)/TIOCA2 (I/O)
P16 (I/O)/TIOCA2 (I/O)
P15 (I/O)/TIOCB1 (I/O)/TCLKC (input)
P15 (I/O)/TIOCB1 (I/O)/TCLKC (input)
P14 (I/O)/TIOCA1 (I/O)
P14 (I/O)/TIOCA1 (I/O)
P13 (I/O)/TIOCD0 (I/O)/TCLKB (input)/A23 (output) P13 (I/O)/TIOCD0 (I/O)/TCLKB (input)
P12 (I/O)/TIOCC0 (I/O)/TCLKA (input)/A22 (output) P12 (I/O)/TIOCC0 (I/O)/TCLKA (input)
P11 (I/O)/TIOCB0 (I/O)/A21 (output)
P11 (I/O)/TIOCB0 (I/O)
P10 (I/O)/TIOCA0 (I/O)/A20 (output)
P10 (I/O)/TIOCA0 (I/O)
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.
Figure 8.1 Port 1 Pin Functions
Rev.7.00 Feb. 14, 2007 page 222 of 1108
REJ09B0089-0700