ARM System-on-Chips

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The following is a list of ARM-based System-on-Chips (SoCs) that either have been used in RISC OS machines, are potentially suitable for RISC OS machines, or have been discussed as possible targets for a RISC OS port.

Contents

Samsung S3C24xx

Based on ARM9 cores. The only member of this family that is relevant to RISC OS is the S3C2440, based on the ARM920T core.

S3C2440 Features

  • ARM920T CPU @ 300, 400, or 533 MHz (400 in A9home)
  • 640x480 24-bpp LCD controller (not used in A9home)
  • AC97 audio support
  • USB 1.1 host and device support

Used in

Compatible with

  • RISC OS Adjust32 4.4x

Documents

S3C2440X Product Brief (PDF)

Anyka AK7802

Based on ARM926EJ core, clocked at 248 or 266 MHz. Used in some cheap netbooks, but not suitable for RISC OS applications due to poor performance relative to other SoCs currently available, and poor documentation. Windows CE is the only supported OS.

Documents

Anyka AK7802 product page

Texas Instruments OMAP3

Based on an ARM Cortex-A8 core, different models have different features including a DSP and PowerVR 3D graphics acceleration. OMAP34 and 36 models are primarily intended for handset (cellular phone) applications, and are not listed below. The OMAP35 is derived from the OMAP34.

Model Max CPU speed (MHz) DSP GPU
OMAP3530 720 520 MHz TI C64x+ PowerVR SGX 530
OMAP3525 600 430 MHz TI C64x+ None
OMAP3515 600 None PowerVR SGX 530
OMAP3503 600 None None

Used in

Development boards

  • BeagleBoard (OMAP3530)
  • Gumstix Overo (Earth, Air: OMAP3503; Water, Fire: OMAP3530)
  • Direct Insight SwiftModule-OM (OMAP3503, 3515, 3530)

Complete systems

  • OpenPandora (OMAP3530)
  • Always Innovating Touch Book (OMAP3530)

Compatible with

  • RISC OS 5.15

Documents

OMAP3530 and 3525 Datasheet (PDF)
OMAP3515 and 3503 Datasheet (PDF)

Freescale i.MX515

800 MHz Cortex-A8 core, ATI 3D accelerator, intended for netbook applications

Used in

  • Genesi Efika MX Open Client

Documents

i.MX51 Product Summary




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