MPC5604E datasheet(10/75 Pages) FREESCALE

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MPC5604E Microcontroller Data Sheet, Rev. 4

Package pinouts and signal descriptions

Freescale Semiconductor

2.2.3

Pin muxing

Table 4 defines the pin list and muxing for the MPC5604E devices.

Each row of Table 4 shows all the possible ways of configuring each pin, via “alternate functions”. The default function

assigned to each pin after reset is the ALT0 function.Pins marked as external interrupt capable can also be used to resume from

STOP and HALT mode.

MPC5604E devices provide four main I/O pad types depending of the associated functions:

•

Slow pads are the most common, providing a compromise between transition time and low electromagnetic emission.

•

Medium pads provide fast enough transition for serial communication channels with controlled current to reduce

electromagnetic emission.

•

Fast pads provide maximum speed. They are used for improved Nexus debugging capability.

Medium and Fast pads can be used in slow configuration to reduce the electromagnetic emissions, at the cost of reducing AC

performance.

Table 3. System pins

Symbol

Description

Direction

Pad speed1

1 SRC values refer to the value assigned to the Slew Rate Control bits of the pad configuration register.

SRC = 0

SRC = 1

64-pin

100-pin2

2 The 100-pin package is not a production package. It is used for software development only.

Dedicated pins

NMI

Non-maskable Interrupt

Input only

Slow

—

XTAL

Oscillator amplifier output

Output only

—

EXTAL

Input for oscillator amplifier circuit and

internal clock generator

Input only

—

TDI3

3 Additional board pull resistors are recommended when JTAG pins are not being used on the board or application.

JTAG test data input

Input only

Slow

Medium

TMS3

JTAG state machine control

Input only

Slow

Medium

TCK3

JTAG clock

Input only

Slow

—

TDO3

JTAG test data output

Output only

Slow

Medium

Reset pin

RESET

Bidirectional reset with Schmitt trigger

characteristics and noise filter

Bidirectional

Medium

—

POR_B

Power-on reset

Input only

—

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