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OMAP

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A BeagleBoard featuring a TI OMAP3530 at its core
TI OMAP4430 on PandaBoard
TI's Zoom2 reference hardware based on the OMAP 3430 processor

OMAP (Open Multimedia Applications Platform) is a family of image/video processors that was developed by Texas Instruments. They are proprietary system on chips (SoCs) for portable and mobile multimedia applications. OMAP devices generally include a general-purpose ARM architecture processor core plus one or more specialized co-processors. Earlier OMAP variants commonly featured a variant of the Texas Instruments TMS320 series digital signal processor.

The platform was created after December 12, 2002, as STMicroelectronics and Texas Instruments jointly announced an initiative for Open Mobile Application Processor Interfaces (OMAPI) intended to be used with 2.5 and 3G mobile phones, that were going to be produced during 2003.[1] (This was later merged into a larger initiative and renamed the MIPI Alliance.) The OMAP was Texas Instruments' implementation of this standard. (The STMicroelectronics implementation was named Nomadik.)

OMAP enjoyed some success in the smartphone and tablet market until 2011 when it lost ground to Qualcomm Snapdragon.[2] On September 26, 2012, Texas Instruments announced that they would wind down their operations in smartphone and tablet oriented chips and focus on embedded platforms instead.[3] On November 14, 2012, Texas Instruments announced they would cut 1,700 jobs due to their shift from mobile to embedded platforms.[4] The last OMAP5 chips were released in Q2 2013.

OMAP family

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The Galaxy Nexus, example of a smartphone with an OMAP 4460 SoC

The OMAP family consists of three product groups classified by performance and intended application:

  • high-performance applications processors
  • basic multimedia applications processors
  • integrated modem and applications processors

Further, two main distribution channels exist, and not all parts are 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 OMAP 1 parts, and many OMAP 3 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.

High-performance applications processors

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

OMAP 1

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The OMAP 1 family started with a TI-enhanced ARM925 core (ARM925T), and then changed to a standard ARM926 core. It included many 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 OMAP1710 family chips are still available to handset vendors.

Products using OMAP 1 processors include hundreds of cell phone models, and the Nokia 770 Internet tablets.

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

OMAP 2

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These parts were only marketed to handset vendors. Products using these include both Internet tablets and mobile phones:

  • OMAP2431 – 330 MHz ARM1136 + 220 MHz C64x DSP
  • OMAP2430 – 330 MHz ARM1136 + 220 MHz C64x DSP + PowerVR MBX lite GPU, 90 nm technology
  • OMAP2420 – 330 MHz ARM1136 + 220 MHz C55x DSP + PowerVR MBX GPU, 90 nm technology[5]

OMAP 3

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The 3rd generation OMAP, the OMAP 3[6] 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 45 nm version of the 65 nm OMAP34x with higher clock speed.[7]

The OMAP 3611 found in devices like the Bookeen's Cybook Odyssey is a licensed crippled version of the OMAP 3621, both are the same silicon (as marking are the same) but officially the 3611 was sold to be only able to drive e-Ink screen and does not have access to IVA & DSP.

The video technology in the higher end OMAP 3 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 OMAP 1 generation or ARM Cortex-A8.[8]

Not highlighted in the list below is that each OMAP 3 SoC 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.

Model number Fab CPU Frq (MHz) GPU DSP HSA-features Utilizing devices
OMAP3410 65 nm Cortex-A8 600 PowerVR SGX530 Un­known Un­known
List
OMAP3420
OMAP3430 TMS320C64x+
List
OMAP3440 800 Un­known
List
OMAP3503 600 -
List
OMAP3515 600 PowerVR SGX530
OMAP3525 600 -
OMAP3530 720 MHz PowerVR SGX530 TMS320C64x+[11]
List
OMAP3611 45 nm 800
List
  • Cybook Odyssey[17]
OMAP3621 800
List
OMAP3622 1000
OMAP3630 600 MHz~1.2 GHz Un­known
List
OMAP3640 1.2 GHz
List

OMAP 4

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The TI Ducati SIP core does video acceleration and accelerated image processing.

The OMAP 4 line consists of the OMAP 4430, OMAP 4460 (formerly named 4440),[20] and OMAP 4470. The 4th generation OMAPs have a dual-core ARM Cortex-A9 CPU with two ARM Cortex-M3 cores, as part of the "Ducati" sub-system[21] for off-loading low-level tasks.[22][23][24] The OMAP 4430 was the SoC used in Google Glass.[25]

OMAP 4 uses ARM Cortex-A9's with ARM's SIMD engine (Media Processing Engine, aka NEON) which in some cases may have a significant performance advantage over Nvidia Tegra 2's ARM Cortex-A9s with non-vector floating point units.[26] It also uses a dual-channel LPDDR2 memory controller compared to Nvidia Tegra 2's single-channel memory controller.

All OMAP 4 processors come with an IVA3 multimedia hardware accelerator with a programmable DSP that enables 1080p Full HD and multi-standard video encoding and decoding.[27][28][29][30]

The 4430 and 4460 use a PowerVR SGX540 graphics processing unit (GPU). The 4430's GPU runs at a clock frequency of 304 Mhz, and the 4460's GPU runs at 384 MHz.[31]

The 4470 has a PowerVR SGX544 GPU that supports DirectX 9 that enables it for use in Windows 8. It also has a dedicated 2D graphics core for increased power efficiency up to 50-90%.[32]

SoC CPU GPU DSP Image & Video acceleration Memory technology Availability Devices
Model Fab Microarchitecture # Cores Frq
(GHz) 		Type Bus width (bit) Bandwidth (GB/s)
OMAP4430 45 nm Cortex-A9 2 1–1.2 PowerVR SGX540 @ 304–365 MHz "Tesla" (C64T) "Ducati":[21] dual Cortex-M3@266 MHz
& IVA–HD
& ISS 		LPDDR2 32-bit dual-channel 7.4 Q1 2011
List
OMAP4460 1.2–1.5 PowerVR SGX540 @ 307–384 MHz Q4 2011
List
OMAP4470 1.3–1.5 PowerVR SGX544 @ 277–384 MHz + Vivante GC320 (dedicated 2D graphics core)[32] Q2 2012
List

OMAP 5

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The 5th generation OMAP, OMAP 5 SoC uses a dual-core ARM Cortex-A15 CPU with two additional Cortex-M4 cores to offload the A15s in less computationally intensive tasks to increase power efficiency, two PowerVR SGX544MP graphics cores and a dedicated TI 2D BitBlt graphics accelerator, a multi-pipe display sub-system and a signal processor.[44] They respectively support 24 and 20 megapixel cameras for front and rear 3D HD video recording. The chip also supports up to 8 GB of dual channel LPDDR2/DDR3 memory, output to four HD 3D displays and 3D HDMI 1.4 video output. OMAP 5 also includes three USB 2.0 ports, one lowspeed USB 3.0 OTG port and a SATA 2.0 controller.

Model number Fab CPU Frq GPU Frq DSP Memory technology Availability Utilizing devices
OMAP5430 28 nm Cortex-A15 (dual-core)[45] and
Cortex-M4 (dual-core) 		1.5, 1.7 GHz PowerVR SGX544MP2[46] + dedicated TI 2D BitBlt graphics accelerator 532 MHz "Tesla" (C64T) 32-bit dual-channel 532 MHz LPDDR2 (8.5 GB/sec)[47] Q2 2013
List
  • Jorjin APM-5
OMAP5432 1.5, 1.7 GHz 532 MHz 32-bit dual-channel 532 MHz DDR3 (8.5 GB/sec)[47] Q2 2013
List

Basic multimedia applications processors

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GStreamer makes use of hardware acceleration through plugins provided by Texas Instruments. The API is DMAI (DaVinci Multimedia Application Interface).

These are marketed only to handset manufacturers. They are intended to be highly integrated, low cost chips for consumer products. The OMAP-DM series are intended to be used as digital media coprocessors for mobile devices with high megapixel digital still and video cameras. These OMAP-DM chips incorporate both an ARM processor and an Image Signal Processor (ISP) to accelerate processing of camera images.

  • OMAP310 – ARM925T[51]
  • OMAP331 – ARM926[52]
  • OMAP-DM270 – ARM7 + C54x DSP
  • OMAP-DM299 – ARM7 + Image Signal Processor (ISP) + stacked mDDR SDRAM
  • OMAP-DM500 – ARM7 + ISP + stacked mDDR SDRAM
  • OMAP-DM510 – ARM926 + ISP + 128 MB stacked mDDR SDRAM
  • OMAP-DM515 – ARM926 + ISP + 256 MB stacked mDDR SDRAM
  • OMAP-DM525 – ARM926 + ISP + 256 MB stacked mDDR SDRAM

Integrated modem and applications processors

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An OMAP 850 in an HTC Wizard

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-1x

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The OMAP L-1x 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.

The Hawkboard uses the OMAP-L138

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

Products using OMAP processors

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Many mobile phones released during early 21st century have used OMAP SoCs, including the Nokia 3230, N9, N90, N91, N92, N95, N82, E61, E62, E63 and E90 mobile phones, as well as the Nokia 770, N800, N810 and N900 Internet tablets, Motorola Droid, Droid X, and Droid 2, and some early Samsung Galaxy devices, like Samsung Galaxy Tab 2 7.0 and Galaxy S II variant GT-I9100G.

The OMAP3430 is used in the Palm Pre, Pandora, and Touch Book. Other devices that use OMAP processors include Sony Ericsson's Satio (Idou) and Vivaz, most Samsung phones running Symbian (including Omnia HD), the Nook Color, some Archos tablets (such as Archos 80 gen 9 and Archos 101 gen 9), Kindle Fire HD, Blackberry Playbook, Kobo Arc, and B&N Nook HD.

Some all-in-one smart displays use OMAP 4 SoCs, including the Viewsonic VSD220, which uses an OMAP 4430.

OMAP SoCs are also used as the basis for a number of hobbyist, prototyping and evaluation boards, such as the BeagleBoard, PandaBoard, OMAP3 Board, Gumstix and Presonus digital mixing boards

Motorola MOTOTRBO 2. generation radios use the OMAP-L132 or OMAP-L138 secure CPU.

Similar platforms

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See also

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References

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  3. ^ "UPDATE 3-Texas Instruments eyes shift away from wireless". Reuters. 25 September 2012.
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