Chapter 11 Signal Multiplexing; Port Control And Interrupt Module Features - NXP Semiconductors freescale KV4 Series Reference Manual

Chapter 11
Signal Multiplexing
11.1 Introduction
To optimize functionality in small packages, pins have several functions available via
signal multiplexing. This chapter illustrates which of this device's signals are multiplexed
on which external pin.
The Port Control block controls which signal is present on the external pin. Reference
that chapter to find which register controls the operation of a specific pin.

11.2 Port control and interrupt module features

• 32-pin ports
Not all pins are available on the device. See the following
section for details.
• Each 32-pin port is assigned one interrupt.
Feature Port A
Pull select control Yes
Pull select at reset PTA1/PTA2/PTA3/
PTA4/PTA5=Pull
up, Others=Pull
down
Pull enable control Yes
Pull enable at reset PTA0/PTA1/PTA2/
PTA3/PTA4/
PTA5=Enabled;
Others=Disabled
Freescale Semiconductor, Inc.
NOTE
Table 11-1. Ports summary
Port B Port C
Yes Yes
Pull down Pull down
Yes Yes
Disabled Disabled
Table continues on the next page...
KV4x Reference Manual, Rev. 2, 02/2015
Preliminary
Port D Port E
Yes Yes
Pull down Pull down
Yes Yes
Disabled Disabled
139