mcf5282 Freescale Semiconductor, Inc, mcf5282 Datasheet - Page 504

• Manufacturer Part Number: mcf5282
• Manufacturer: Freescale Semiconductor, Inc

General Purpose I/O Module
26.1.1
The ports module controls the configuration for various external pins, including those used for:
26.1.2
The ports includes these distinctive features:
26.1.3
The operational modes for the ports are listed below. For more detailed descriptions of each mode, refer
to
26.2
The ports control the functionality of several external pins. These pins are listed in
26-4
Section 26.4, “Functional
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External bus accesses
Chip selects
Debug data
Processor status
Ethernet data and control (not present on the MCF5214 and MCF5216)
FlexCAN transmit/receive data
I
QSPI
SDRAM control
32-bit DMA timers
UART transmit/receive
Control of primary function use on all ports
Digital I/O support for all ports
— Registers for storing output pin data
— Registers for controlling pin data direction
— Registers for reading current pin state
— Registers for setting and clearing output pin data registers
Single-chip mode
All pins are configured as digital I/O by default, except for debug data pins (DDATA[3:0]) and
processor status pins (PST[3:0]).
Master mode
Ports A and B function as the upper external data bus. Ports C and D can function as the lower
external data bus. Ports E–J are configured to support external memory.
2
C serial control
External Signal Description
Overview
Features
Modes of Operation
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
Description.”
Table
Freescale Semiconductor
26-1.