Features

PXR40 Product Brief, Rev. 1

Preliminary—Subject to Change Without Notice

Freescale Semiconductor

5

2.3

Critical performance parameters

The critical performance parameters of the PXR40 feature the following:

•

Maximum CPU frequency: 264 MHz

— Platform and peripheral modules typically run at half of the CPU frequency

— Some peripheral modules (including the eTPU modules) support a full frequency mode with a

maximum operating frequency of 200 MHz

•

Temperature range: –40

 to 105 C

•

Nominal power dissipation is less than 1.4 W, while enhancements to allow reduced power

operation using clock gating are included

•

Separate power supply available for stand-by operation of a portion of SRAM

2.3.1

Low-power modes

The PXR40 includes two special modes to allow reduction of application power consumption:

•

Slow mode: Allows the device to be run at very low speed (approximately 1 MHz), with modules

(including the PLL) selectively disabled by software.

•

Stop mode: System clock stopped to most modules including the CPU. Wake-up timer used to

restart the system clock after a predetermined time.

2.4

Package

The PXR40 is offered in a 416-ball PBGA, 1 mm ball pitch, 27 mm

 27 mm outline (no EBI) package

type.

2.5

Module features

The following sections provide more details of the modules implemented on the PXR40.

2.5.1

High-performance e200z7 core processor

The e200z7 core includes the following features:

•

•

Supports the 32-bit Power Architecture Book E programmer’s model

•

64-bit general-purpose registers (GPRs) support vector instructions defined by the SPE2 APU

— All arithmetic instructions that execute in the core operate on data in the GPRs

•

Enhanced signal processing extension (SPE2) APU supports real-time fixed point and

single-precision embedded numerics operations using the GPRs

•

Variable length encoding (VLE) enhancements

— Allows optional encoding of mixed 16-bit and 32-bit instructions

— Results in smaller code size footprint