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ARM Cortex-A7
The ARM Cortex-A7 MPCore is a 32-bit microprocessor core licensed by ARM Holdings implementing the ARMv7-A architecture announced in 2011. Overview It has two target applications; firstly as a smaller, simpler, and more power-efficient successor to the Cortex-A8. The other use is in the big.LITTLE architecture, combining one or more A7 cores with one or more Cortex-A15 cores into a heterogeneous system. To do this it is fully feature-compatible with the A15. Key features of the Cortex-A7 core are: * Partial dual-issue, in-order microarchitecture with an 8-stage pipeline * NEON SIMD instruction set extension * VFPv4 Floating Point Unit * Thumb-2 instruction set encoding * Jazelle RCT * Hardware virtualization * Large Page Address Extensions (LPAE) * Integrated level 2 Cache (0–1 MB) * 1.9 DMIPS / MHz * Typical clock speed 1.5 GHz Chips Several system-on-chips (SoC) have implemented the Cortex-A7 core, including: * Allwinner A20 (dual-core A7 + Mali-400 MP2 GPU) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gigahertz
The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), often described as being equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose formal expression in terms of SI base units is 1/s or s−1, meaning that one hertz is one per second or the reciprocal of one second. It is used only in the case of periodic events. It is named after Heinrich Rudolf Hertz (1857–1894), the first person to provide conclusive proof of the existence of electromagnetic waves. For high frequencies, the unit is commonly expressed in multiples: kilohertz (kHz), megahertz (MHz), gigahertz (GHz), terahertz (THz). Some of the unit's most common uses are in the description of periodic waveforms and musical tones, particularly those used in radio- and audio-related applications. It is also used to describe the clock speeds at which computers and other electronics are driven. The units are sometimes also used as a representation of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dhrystone
Dhrystone is a synthetic computing benchmark program developed in 1984 by Reinhold P. Weicker intended to be representative of system (integer) programming. The Dhrystone grew to become representative of general processor ( CPU) performance. The name "Dhrystone" is a pun on a different benchmark algorithm called Whetstone, which emphasizes floating point performance. With Dhrystone, Weicker gathered meta-data from a broad range of software, including programs written in FORTRAN, PL/1, SAL, ALGOL 68, and Pascal. He then characterized these programs in terms of various common constructs: procedure calls, pointer indirections, assignments, etc. From this he wrote the Dhrystone benchmark to correspond to a representative mix. Dhrystone was published in Ada, with the C version for Unix developed by Rick Richardson ("version 1.1") greatly contributing to its popularity. Dhrystone vs. Whetstone The Dhrystone benchmark contains no floating point operations, thus the name is a p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QorIQ
QorIQ is a brand of ARM-based and Power ISAbased communications microprocessors from NXP Semiconductors (formerly Freescale). It is the evolutionary step from the PowerQUICC platform, and initial products were built around one or more e500mc cores and came in five different product platforms, P1, P2, P3, P4, and P5, segmented by performance and functionality. The platform keeps software compatibility with older PowerPC products such as the PowerQUICC platform. In 2012 Freescale announced ARM-based QorIQ offerings beginning in 2013. The QorIQ brand and the P1, P2 and P4 product families were announced in June 2008. Details of P3 and P5 products were announced in 2010. QorIQ P Series processors were manufactured on a 45 nm fabrication process and was available in the end of 2008 (P1 and P2), mid-2009 (P4) and 2010 (P5). QorIQ T Series is based on a 28 nm process and is pushing a very aggressive power envelope target, capping at 30 W. These are using the e6500 core wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freescale Semiconductor
Freescale Semiconductor, Inc. was an American semiconductor manufacturer. It was created by the divestiture of the Semiconductor Products Sector of Motorola in 2004. Freescale focused their integrated circuit products on the automotive, embedded and communications markets. It was bought by a private investor group in 2006, and subsequently merged with NXP Semiconductors in 2015. History Divestiture from Motorola and first IPO As of 2003, Motorola Semiconductor Products Sector earned US$5.0 billion in semiconductor sales in 2002 (out of US$27 billion sales for all of Motorola). Motorola announced that their semiconductor division would be divested on October 6, 2003 and would have a temporary name ''SPS Spinco''. Freescale completed its Initial public offering (IPO) on July 16, 2004, at a price of US$13. In its announcement, it estimated the stock price to be US$17.50- 19.50 but following a cooling of the market towards tech stocks, it lowered its price to US$13. Existing sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raspberry Pi
Raspberry Pi ( ) is a series of small single-board computers (SBCs) developed in the United Kingdom by the Raspberry Pi Foundation in collaboration with Broadcom Inc., Broadcom. To commercialize the product and support its growing demand, the Foundation established a commercial entity, Raspberry Pi Holdings, a public company that trades on the London Stock Exchange. The Raspberry Pi was originally created to help teach computer science in schools, but gained popularity for many other uses due to its low cost, compact size, and flexibility. It is now used in areas such as Industrial Automation and Control Systems, industrial automation, robotics, home automation, IoT devices, and hobbyist projects. The company's products range from simple microcontrollers to computers that the company markets as being powerful enough to be used as a general purpose PC. Computers are built around a custom designed system on a chip and offer features such as HDMI video/audio output, USB ports, wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VideoCore
VideoCore is a series of low-power mobile multimedia processors originally developed by Alphamosaic Ltd and now owned by Broadcom. Alphamosaic marketed its first version as a two-dimensional DSP architecture that makes it flexible and efficient enough to decode (as well as encode) a number of multimedia codecs in software while maintaining low power usage. The semiconductor intellectual property core (SIP core) has been found so far only on Broadcom SoCs. Technical details Multimedia system constraints Mobile multimedia devices require a lot of high-speed video processing but at low power for long battery life. The ARM processor core has a high IPS per watt figure (and thus dominates the mobile phone market) but requires video acceleration coprocessors and display controllers for a complete system. The amount of data passing between these chips at high speed results in higher power consumption. Specialised co-processors may be optimised for throughput over latency (mor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broadcom
Broadcom Inc. is an American multinational corporation, multinational designer, developer, manufacturer, and global supplier of a wide range of semiconductor and infrastructure software products. Broadcom's product offerings serve the data center, networking, software, broadband, wireless, storage, and industrial markets. As of 2024, some 58 percent of Broadcom's revenue came from its semiconductor-based products and 42 percent from its infrastructure software products and services. Tan Hock Eng is the company's president and chief executive officer, CEO. The company is headquartered in Palo Alto, California. Avago Technologies Limited was changing its name to ''Broadcom'' to acquire Broadcom Corporation in January 2016. Avago's ticker symbol AVGO now represents the merged entity. The Broadcom Corporation ticker symbol BRCM was retired. Initially the merged entity was known as ''Broadcom Limited'', before assuming the current name in November 2017. In October 2019, the Europe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allwinner A83T
Allwinner Technology Co., Ltd is a Chinese fabless semiconductor company specialized in mixed-signal system on a chip, systems on a chips (SoC). The company is headquartered in Zhuhai, Guangdong, China. Since founded in 2007, Allwinner has released over fifteen System on a chip, SoC processors for use in Android (operating system), Android-based tablet computer, tablets, as well as smartphones, over-the-air programming, over-the-air OTT boxes, video camera systems, car DVRs, and car media players. In 2012 and 2013, Allwinner was the number one supplier in terms of unit shipments of application processors for Android tablets worldwide. For Q2 2014, Allwinner was reported by DigiTimes to be the third largest supplier to the Chinese market after Rockchip and MediaTek. Product lines A-Series A series processors are used for mobile applications, mainly referring to tablet application. A1x family In 2011, the company became an ARM processor licensee, and subsequently anno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PowerVR SGXMP
PowerVR is a division of Imagination Technologies (formerly VideoLogic) that develops hardware and software for 2D and 3D rendering, and for video encoding, decoding, associated image processing and DirectX, OpenGL ES, OpenVG, and OpenCL acceleration. PowerVR also develops AI accelerators called Neural Network Accelerator (NNA). The PowerVR product line was originally introduced to compete in the desktop PC market for 3D hardware accelerators with a product with a better price–performance ratio than existing products like those from 3dfx Interactive. Rapid changes in that market, notably with the introduction of OpenGL and Direct3D, led to rapid consolidation. PowerVR introduced new versions with low-power electronics that were aimed at the laptop computer market. Over time, this developed into a series of designs that could be incorporated into system-on-a-chip architectures suitable for handheld device use. PowerVR accelerators are not manufactured by PowerVR, but instead th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allwinner A31
Allwinner Technology Co., Ltd is a Chinese fabless semiconductor company specialized in mixed-signal systems on a chips (SoC). The company is headquartered in Zhuhai, Guangdong, China. Since founded in 2007, Allwinner has released over fifteen SoC processors for use in Android-based tablets, as well as smartphones, over-the-air OTT boxes, video camera systems, car DVRs, and car media players. In 2012 and 2013, Allwinner was the number one supplier in terms of unit shipments of application processors for Android tablets worldwide. For Q2 2014, Allwinner was reported by DigiTimes to be the third largest supplier to the Chinese market after Rockchip and MediaTek. Product lines A-Series A series processors are used for mobile applications, mainly referring to tablet application. A1x family In 2011, the company became an ARM processor licensee, and subsequently announced a series of ARM Cortex-A8 powered mobile application processors, including A10, A13 and A10s, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
