Gpio Signal Descriptions - NXP Semiconductors freescale KV4 Series Reference Manual

Introduction
Efficient bit manipulation of the general-purpose outputs is supported through the
addition of set, clear, and toggle write-only registers for each port output data register.
47.2.1 Features
Features of the GPIO module include:
• Port Data Input register visible in all digital pin-multiplexing modes
• Port Data Output register with corresponding set/clear/toggle registers
• Port Data Direction register
The GPIO module is clocked by system clock.
47.2.2 Modes of operation
The following table depicts different modes of operation and the behavior of the GPIO
module in these modes.
Modes of operation

47.2.3 GPIO signal descriptions

GPIO signal descriptions
PORTA31–PORTA0
PORTB31–PORTB0
PORTC31–PORTC0
PORTD31–PORTD0
PORTE31–PORTE0
Not all pins within each port are implemented on each device.
See the chapter on signal multiplexing for the number of GPIO
ports available in the device.
1328
NOTE
Table 47-1. Modes of operation
Description
Run The GPIO module operates normally.
Wait The GPIO module operates normally.
Stop The GPIO module is disabled.
Debug The GPIO module operates normally.
Table 47-2. GPIO signal descriptions
General-purpose input/output
General-purpose input/output
General-purpose input/output
General-purpose input/output
General-purpose input/output
NOTE
KV4x Reference Manual, Rev. 2, 02/2015
Preliminary
Description I/O
I/O
I/O
I/O
I/O
I/O
Freescale Semiconductor, Inc.