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Freescale Semiconductor
Freescale Semiconductor


Multimedia Applications Processors

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Freescale Semiconductor Product Brief

Document Number: MC1128MX31PB Rev. 0.6, 06/2005

i.MX31 and i.MX31L Multimedia Applications Processors



1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

The i.MX31 and i.MX31L multimedia applications processors represent Freescale Semiconductor’s latest achievement in multimedia integrated applications processors that are part of a growing family of multimedia-focused products offering high performance processing optimized for lowest power consumption. The i.MX31 and i.MX31L processors feature Freescale's advanced and power-efficient implementation of the ARM1136JF-S™ core, which operates at speeds starting at 532 MHz. Unless otherwise specified, the material in this product brief is applicable to both the i.MX31 and i.MX31L processors. Features include the following: • Smart Speed Technology—The heart of the i.MX31 and i.MX31L processors is a level of power management throughout the ICs that allow the rich suite of multimedia features and peripherals to achieve minimum system power consumption in both active and various low-power modes. Smart Speed Technology

© Freescale Semiconductor, Inc., 2005. All rights reserved.






enables the designer to deliver a feature-rich product that requires levels of power that are far less than typical industry expectations. Multimedia Powerhouse—The multimedia performances of the i.MX31 and i.MX31L processors are each boosted by a multi-level cache system and further enhanced by an MPEG4 hardware accelerator that provides MPEG4 SP encoding up to VGA resolution at 30 fps, as well as an Autonomous Image Processing Unit, Vector Floating Point (VFP11) co-processor, and a programmable DMA controller. Powerful Graphics Acceleration (not available in the i.MX31L)—3D graphics are the key to mobile game designs. The i.MX31 processor delivers an integrated 3D Graphics Processing Unit (GPU) that provides an incredible 0.8–0.9 MTri/sec (double textured, bi-linear, Gouraud shaded) at about 100 Mpix/sec (effective). Interface Flexibility—The i.MX31 and i.MX31L processors’ interface support connection to all popular types of external memories—DDR, SDRAM, NAND Flash, NOR Flash, SRAM, and MDOC. Designers seeking to provide products that deliver a rich multimedia experience will find a full suite of on-chip peripherals: LCD controller a

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