H8SSLASH2224 datasheet(391/1071 Pages) RENESAS

Il numero della parte	H8S/2224

Spiegazioni elettronici	16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series

PDF	1071 Pages

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Produttore elettronici	RENESAS [Renesas Technology Corp]

Homepage	http://www.renesas.com

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Section 10 I/O Ports

Rev. 5.00 Aug 08, 2006 page 305 of 982

REJ09B0054-0500

Section 10 I/O Ports

Table 10.1 summarizes the port functions. The pins of each port also have other functions such as

input/output or interrupt input pins of on-chip peripheral modules.

Each I/O port includes a data direction register (DDR) that controls input/output, a data register

(DR) that stores output data, and a port register (PORT) used to read the pin states. The input-only

ports do not have DR and DDR registers.

Ports A to E have a built-in input pull-up MOS function and an input pull-up MOS control register

(PCR) to control the on/off state of input pull-up MOS respectively.

Ports 3 and A include an open-drain control register (ODR) that controls the on/off state of the

output buffer PMOS respectively.

All the I/O ports can drive a single TTL load and a 30-pF capacitive load.

The P35 and P34 pins on port 3 are NMOS push pull outputs.*

The IRQ pin is Schmitt-trigger input.

Note: * Supported only by the H8S/2258 Group, H8S/2239 Group, and H8S/2238 Group.

H8S/2224 Scheda tecnica(PDF) 391 Page - Renesas Technology Corp