OMAP

Texas Instruments OMAP (Open Multimedia Application Platform) is a category of proprietary microprocessors that have capabilities for portable and mobile multimedia applications and are developed by Texas Instruments. Many mobile phones use OMAP microprocessors, including most of Nokia's N-series range. Phones known to use OMAP include the N90, N91, N92, N95, N82, E61, E62, E63, and many other Nokia and Samsung devices (Like Nokia N800/N810 Internet Tablets). The Palm Pre, announced at CES 2009, also uses an OMAP processor (the OMAP3430). Others to use an OMAP SoC include the Sony Ericsson IDOU and the Samsung OMNIA HD. Some of the processors in the OMAP family contain a dual-core architecture consisting of both a general-purpose host ARM processor and one or more DSP. The digital signal processor featured is commonly a variant of the Texas Instruments TMS320 series DSPs.

Processor families

The OMAP family consists of three product groups classified by performance and intended application: "High Performance", "Basic Multimedia", and "Modem and Applications".

Additionally, there are two primary distribution channels - not all parts being available in both channels. The genesis of the OMAP product line is from partnership with cell phone vendors, and the main distribution channel involves sales directly to such wireless handset vendors. Parts developed to suit evolving cell phone requirements are flexible and powerful enough to support sales through less specialized catalog channels; some OMAP1 parts, and many OMAP3 parts, have catalog versions with different sales and support models. Parts that are obsolete from the perspective of handset vendors may still be needed to support products developed using catalog parts and distributor-based inventory management.

Recently, the catalog channels have received more focus, with OMAP35x and OMAP-L13x parts being marketed for use with various applications where capable and power-efficient processors are useful.

"High performance"

These are parts originally intended for use as application processors in smart phones, with processors hefty enough to run significant operating systems (such as Linux or Symbian), support connectivity to personal computers, and support various audio and video applications.

OMAP1

The OMAP1 family started with a TI-enhanced ARM core, and then switched to a standard ARM926 core. It included numerous variants, most easily distinguished according to manufacturing technology (130 nm except for the OMAP171x series), CPU, peripheral set, and distribution channel (direct to large handset vendors, or through catalog-based distributors). In March 2009, the OMAP 1710 family chips are still available to handset vendors.

Products using OMAP1 processors include hundreds of cell phone models, and the Nokia 770 Internet Tablets.

OMAP171x - 220 MHz ARM926EJ-S + C55x DSP, Low-voltage 90 nm technology
OMAP162x - 204 MHz ARM926EJ-S + C55x DSP + 2MB Internal SRAM, 130 nm technology
OMAP5912 - catalog availability version of OMAP1621 (or OMAP1611b in older versions)
OMAP161x - 204 MHz ARM926EJ-S + C55x DSP, 130 nm technology
OMAP1510 - 168 MHz ARM925T (TI-enhanced) + C55x DSP
OMAP5910 - catalog availability version of OMAP 1510

OMAP2

These parts were never marketed except to handset vendors. Products using these include both Internet Tablets and mobile phones:

OMAP2431 - 330 MHz ARM1136 + 220 MHz C55x DSP
OMAP2430 - 330 MHz ARM1136 + 220 MHz C55x DSP + PowerVR MBX lite GPU
OMAP2420 - 330 MHz ARM1136 + 220 MHz C55x DSP + PowerVR MBX GPU

OMAP3

The OMAP3 is broken into 3 distinct groups: the OMAP34x, the OMAP35x, and the OMAP36x. OMAP34x and OMAP36x are distributed directly to large handset (such as cell phone) manufacturers. OMAP35x is a variant of OMAP34x intended for catalog distribution channels. The OMAP36x is a 45nm version of the 65nm OMAP34x with higher clock speed.^[1]

The video technology in the higher end OMAP3 parts is derived in part from the DaVinci product line, which first packaged higher end C64x+ DSPs and image processing controllers with ARM9 processors last seen in the older OMAP1 generation.

Not highlighted in the list below is that each OMAP3 processor has an "Image, Video, Audio" (IVA2) accelerator. These units do not all have the same capabilities. Most devices support 12 megapixel camera images, though some support 5 or 3 megapixels. Some support HD imaging.

Handset channels:

OMAP3640 - 1 GHz ARM Cortex A8 + PowerVR SGX530 GPU + 430 MHz C64x+ DSP + ISP (Image Signal Processor)
OMAP3630 - 720 MHz ARM Cortex A8 + PowerVR SGX530 GPU + 430 MHz C64x+ DSP + ISP (Image Signal Processor)
OMAP3620 - 720 MHz ARM Cortex A8 + PowerVR SGX530 GPU + 430 MHz C64x+ DSP + ISP (Image Signal Processor)
OMAP3610 - 720 MHz ARM Cortex A8 + 430 MHz C64x+ DSP
OMAP3440 - 800 MHz ARM Cortex A8 + PowerVR SGX 530 GPU + 430MHz C64x+ DSP + ISP (Image Signal Processor)
OMAP3430 - 600 MHz ARM Cortex A8 + PowerVR SGX 530 GPU + 430MHz C64x+ DSP + ISP (Image Signal Processor)
OMAP3420 - 600 MHz ARM Cortex A8 + PowerVR SGX 530 GPU + 430MHz C64x+ DSP + ISP (Image Signal Processor)
OMAP3410 - 600 MHz ARM Cortex A8 + ISP (Image Signal Processor)

Catalog channels:

OMAP3530 - 600 MHz ARM Cortex A8 + PowerVR SGX530 GPU + 430 MHz C64x+ DSP + ISP (Image Signal Processor)
OMAP3525 - 600 MHz ARM Cortex A8 + 430 MHz C64x+ DSP + ISP (Image Signal Processor)
OMAP3515 - 600 MHz ARM Cortex A8 + PowerVR SGX530 GPU + ISP (Image Signal Processor)
OMAP3503 - 600 MHz ARM Cortex A8 + ISP (Image Signal Processor)

OMAP4

OMAP4 parts have recently been announced.

OMAP4430 - 720 MHz dual-core ARM Cortex-A9 MPCore + PowerVR SGX 540 GPU + C64x+ DSP + ISP (Image Signal Processor)
OMAP4440 - 1+ GHz dual-core ARM Cortex-A9 MPCore + PowerVR SGX 540 GPU + C64x+ DSP + ISP (Image Signal Processor)

"Basic multimedia"

These are marketed only to handset manufacturers.

OMAP331 - ARM9
OMAP310 - ARM9
OMAP-DM270 - ARM7 + C54x DSP

"Modem and applications"

These are marketed only to handset manufacturers. Many of the newer versions are highly integrated for use in very low cost cell phones.

OMAPV1035 - single-chip EDGE (was discontinued in 2009 as TI announced baseband chipset market withdrawal).
OMAPV1030 - EDGE digital baseband
OMAP850 - 200 MHz ARM926EJ-S + GSM/GPRS digital baseband + stacked EDGE co-processor
OMAP750 - 200 MHz ARM926EJ-S + GSM/GPRS digital baseband + DDR Memory support
OMAP733 - 200 MHz ARM926EJ-S + GSM/GPRS digital baseband + stacked SDRAM
OMAP730 - 200 MHz ARM926EJ-S + GSM/GPRS digital baseband + SDRAM Memory support
OMAP710 - 133 MHz ARM925 + GSM/GPRS digital baseband

OMAP L-1xx

The OMAP L-1xx parts are marketed only through catalog channels, and have a different technological heritage than the other OMAP parts. Rather than deriving directly from cell phone product lines, they grew from the video-oriented DaVinci product line by removing the video-specific features while using upgraded DaVinci peripherals. A notable feature is use of a floating point DSP, instead of the more customary fixed point one.

OMAP-L137 - 300 MHz ARM926EJ-S + C674x floating point DSP
OMAP-L138 - 300 MHz ARM926EJ-S + C674x floating point DSP

References

^ OMAP36x

External links

This microcomputer- or microprocessor-related article is a stub. You can help Wikipedia by expanding it.

[1] OMAP36x

[1]