H8S2245 datasheet(255/818 Pages) RENESAS

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Section 8 I/O Ports

Rev.3.00 Mar. 26, 2007 Page 213 of 772

REJ09B0355-0300

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.

Figure 8.1 shows the port 1 pin configuration.

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 2, 3, 6, and 7 cannot be used in the H8S/2240.

Port 1

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)

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)

Pin functions in modes 1 to 3 and 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 (input)/TIOCD0 (I/O)/TCLKB (input)/A23 (output)

P12 (input)/TIOCC0 (I/O)/TCLKA (input)/A22 (output)

P11 (input)/TIOCB0 (I/O)/A21 (output)

P10 (input)/TIOCA0 (I/O)/A20 (output)

Pin functions in modes 4 to 6*

Figure 8.1 Port 1 Pin Functions

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