56F8322 datasheet(98/136 Pages) FREESCALE

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56F8322 Techncial Data, Rev. 16

Freescale Semiconductor

Preliminary

Part 8 General Purpose Input/Output (GPIO)

8.1 Introduction

This section is intended to supplement the GPIO information found in the 56F8300 Peripheral User

Manual and contains only chip-specific information. This information supercedes the generic information

in the 56F8300 Peripheral User Manual.

8.2 Configuration

There are three GPIO ports defined on the 56F8322/56F8122. The width of each port and the associated

peripheral function is shown in Table 8-1 and Table 8-2. The specific mapping of GPIO port pins is

shown in Table 8-3.

Table 8-1 56F8322 GPIO Ports Configuration

GPIO Port

Port

Width

Available

Pins in

56F8322

Peripheral Function

Reset Function

A12

PWM, SPI 1

PWM

SPI 0, DEC 0, TMRA, SCI 1

SPI 0, DEC 0

XTAL, EXTAL, CAN, TMRC, SCI 0

XTAL, EXTAL, CAN, TMRC

Table 8-2 56F8122 GPIO Ports Configuration

GPIO Port

Port

Width

Available

Pins in

56F8122

Peripheral Function

Reset Function

A12

SPI 1

Must be reconfigured

SPI 0, SCI1, TMRA

SPI 0, other pins must be reconfigured

XTAL, EXTAL, TMRC, SCI 0

XTAL, EXTAL, TMRC; other pins must be

reconfigured

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