System Controller Hub

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System Controller Hub (SCH) is a family of Intel microchips employed in chipsets for low-power Atom-based platforms. Its architecture is consistent with the Intel Hub Architecture but combines the traditional northbridge and southbridge functions into a single microchip.

Integrated circuit electronic circuit manufactured by lithography; set of electronic circuits on one small flat piece (or "chip") of semiconductor material, normally silicon

An integrated circuit or monolithic integrated circuit is a set of electronic circuits on one small flat piece of semiconductor material that is normally silicon. The integration of large numbers of tiny MOS transistors into a small chip results in circuits that are orders of magnitude smaller, faster, and less expensive than those constructed of discrete electronic components. The IC's mass production capability, reliability, and building-block approach to circuit design has ensured the rapid adoption of standardized ICs in place of designs using discrete transistors. ICs are now used in virtually all electronic equipment and have revolutionized the world of electronics. Computers, mobile phones, and other digital home appliances are now inextricable parts of the structure of modern societies, made possible by the small size and low cost of ICs.

Chipset set of electronic components in an integrated circuit that manages the data flow between the processor, memory and peripherals

In a computer system, a chipset is a set of electronic components in an integrated circuit known as a "Data Flow Management System" that manages the data flow between the processor, memory and peripherals. It is usually found on the motherboard. Chipsets are usually designed to work with a specific family of microprocessors. Because it controls communications between the processor and external devices, the chipset plays a crucial role in determining system performance.

Intel Atom is the brand name for a line of IA-32 and x86-64 instruction set ultra-low-voltage microprocessors by Intel Corporation. Atom is mainly used in netbooks, nettops, embedded applications ranging from health care to advanced robotics, and mobile Internet devices (MIDs). The line was originally designed in 45 nm complementary metal–oxide–semiconductor (CMOS) technology and subsequent models, codenamed Cedar, used a 32 nm process.



Poulsbo is the codename of the first SCH and plays a key role in Intel's second-generation Menlow UMPC and MID platform chipset for Atom Silverthorne microprocessors. [1] [2]

Mobile Internet device iphonex

A mobile Internet device (MID) is a multimedia-capable mobile device providing wireless Internet access. They are designed to provide entertainment, information and location-based services for personal or business use. They allow 2-way communication and real-time sharing. They have been described as filling a niche between smartphones and tablet computers.

The graphics core is called GMA 500 and unlike most graphics cores used by Intel was developed by Imagination Technologies. Intel licensed the PowerVR SGX 535 as a graphics core and the PowerVR VXD370 for H.264/MPEG-4 AVC playback. The video core is able to process 720p as well as 1080i resolutions. [3]

Imagination Technologies Group plc is a British-based technology company, focusing on semiconductor and related intellectual property licensing. It markets PowerVR mobile graphics processors, MIPS embedded microprocessors, and for its Pure consumer electronics division. It also supplies radio baseband processing, networking, digital signal processor, video and audio hardware, voice over IP software, cloud computing and silicon and system design services. The company was listed on the London Stock Exchange until it was acquired by Canyon Bridge in November 2017.

720p resolution

720p is a progressive HDTV signal format with 720 horizontal lines and an aspect ratio (AR) of 16:9, normally known as widescreen HDTV (1.78:1). All major HDTV broadcasting standards include a 720p format, which has a resolution of 1280×720; however, there are other formats, including HDV Playback and AVCHD for camcorders, that use 720p images with the standard HDTV resolution. The frame rate is standards-dependent, and for conventional broadcasting appears in 50 progressive frames per second in former PAL/SECAM countries, and 59.94 frames per second in former NTSC countries.

1080i is an abbreviation referring to a combination of frame resolution and scan type, used in high-definition television (HDTV) and high-definition video. The number "1080" refers to the number of horizontal lines on the screen. The "i" is an abbreviation for "interlaced"; this indicates that only the odd lines, then the even lines of each frame are drawn alternately, so that only half the number of actual image frames are used to produce video. A related display resolution is 1080p, which also has 1080 lines of resolution; the "p" refers to progressive scan, which indicates that the lines of resolution for each frame are "drawn" in on the screen sequence.

This has the following variations: [4]

GMA 500 Linux support

Although several netbooks using the Poulsbo chipset are shipped with some distribution of Linux (notably the Sony Vaio P and Dell Inspiron Mini 12, among others), Poulsbo's graphics core GMA 500 is currently not well supported by Intel for Linux.

Linux Family of free and open-source software operating systems based on the Linux kernel

Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged in a Linux distribution.

A proprietary driver was shipped with Dell's adaptation of Ubuntu 8.04.1 Netbook Remix, which provides 2D hardware acceleration (although users reported serious stability issues [5] ) under Linux kernel 2.6.24. A work-in-progress free driver is currently available, however the proprietary driver does not work with current Linux kernels and current versions of X. [6] Work is under way to provide at least 2D support in current Linux kernels, [7] although this will still rely on proprietary binary code for the 3D part of the driver. The current [8] status of this driver runs on Fedora 10 and allows for 2D. 3D acceleration, however, is still broken.

A working, proprietary driver package is available for Fedora 11. [9]

Starting with Mandriva 2010 Release Candidate 2, Poulsbo drivers are now fully supported out of the box when you use One isos. Hardware will be automatically detected and configured using XFdrake. As it needs non-free firmware, this could not be included in Free isos. [10]

A rudimentary (no 3D acceleration) driver was added to Linux 2.6.39. [11] [12]

Whitmore Lake

Whitmore Lake is the codename of another SCH.

This has the following variations: [13]

See also

Related Research Articles


Centrino is a brand name of Intel Corporation which represents its Wi-Fi and WiMAX wireless computer networking adapters. Previously the same brand name was used by the company as a platform-marketing initiative. The change of the meaning of the brandname occurred on January 7, 2010.

Mesa, also called Mesa3D and The Mesa 3D Graphics Library, is an open source software implementation of OpenGL, Vulkan, and other graphics API specifications. Mesa translates these specifications to vendor-specific graphics hardware drivers.

Free and open-source graphics device driver

A free and open-source graphics device driver is a software stack which controls computer-graphics hardware and supports graphics-rendering application programming interfaces (APIs) and is released under a free and open-source software license. Graphics device drivers are written for specific hardware to work within a specific operating system kernel and to support a range of APIs used by applications to access the graphics hardware. They may also control output to the display if the display driver is part of the graphics hardware. Most free and open-source graphics device drivers are developed by the Mesa project. The driver is made up of a compiler, a rendering API, and software which manages access to the graphics hardware.

Intel GMA trademark

The Intel Graphics Media Accelerator, or GMA, is a series of integrated graphics processors introduced in 2004 by Intel, replacing the earlier Intel Extreme Graphics series and being succeeded by the Intel HD and Iris Graphics series.

nouveau (software) Open source software driver for nVidia GPU

nouveau is a free and open-source graphics device driver for Nvidia video cards and the Tegra family of SoCs written by independent software engineers, with minor help from Nvidia employees.

The AMD 690 chipset series is an integrated graphics chipset family which was developed and manufactured by AMD subsidiary ATI for both AMD and Intel platforms focusing on both desktop and mobile computing markets. The corresponding chipset for the Intel platform has a marketing name of Radeon Xpress 1200 series.

Video Acceleration API is a royalty-free API as well as its implementation as free and open-source library (libVA) distributed under the MIT License.

Moblin Linux distribution

Moblin, short for 'mobile Linux', is a discontinued open source operating system and application stack for Mobile Internet Devices (MIDs), netbooks, nettops and embedded devices.

Phoronix Test Suite Free and open-source benchmark software

Phoronix Test Suite (PTS) is a free and open-source benchmark software for Linux and other operating systems which is developed by Michael Larabel and Matthew Tippett. The Phoronix Test Suite has been endorsed by sites such as, LinuxPlanet and has been called "the best benchmarking platform" by Softpedia. The Phoronix Test Suite is also used by Tom's Hardware, ASELabs and other review sites.

Acer Aspire One Line of netbooks by Acer Inc.

Acer Aspire One is a line of netbooks first released in July 2008 by Acer Inc.

Mode setting software operation that activates a display mode for a computers display controller

Mode setting is a software operation that activates a display mode for a computer's display controller.

Intel Graphics Technology series of integrated graphics processors

Intel Graphics Technology (GT) is the collective name for a series of integrated graphics processors (IGPs) produced by Intel that are manufactured on the same package or die as the central processing unit (CPU). It was first introduced in 2010 as Intel HD Graphics.

Nvidia Optimus is a computer GPU switching technology created by Nvidia which, depending on the resource load generated by client software applications, will seamlessly switch between two graphics adapters within a computer system in order to provide either maximum performance or minimum power draw from the system's graphics rendering hardware.

Bonnell is a CPU microarchitecture used by Intel Atom processors which can execute up to two instructions per cycle. Like many other x86 microprocessors, it translates x86 instructions into simpler internal operations prior to execution. The majority of instructions produce one micro-op when translated, with around 4% of instructions used in typical programs producing multiple micro-ops. The number of instructions that produce more than one micro-op is significantly fewer than the P6 and NetBurst microarchitectures. In the Bonnell microarchitecture, internal micro-ops can contain both a memory load and a memory store in connection with an ALU operation, thus being more similar to the x86 level and more powerful than the micro-ops used in previous designs. This enables relatively good performance with only two integer ALUs, and without any instruction reordering, speculative execution or register renaming. A side effect of having no speculative execution is invulnerability against Meltdown and Spectre.

Skylake (microarchitecture) Intel processor microarchitecture

Skylake is the codename used by Intel for a processor microarchitecture that was launched in August 2015 succeeding the Broadwell microarchitecture. Skylake is a microarchitecture redesign using the same 14 nm manufacturing process technology as its predecessor, serving as a "tock" in Intel's "tick–tock" manufacturing and design model. According to Intel, the redesign brings greater CPU and GPU performance and reduced power consumption. Skylake CPUs share its microarchitecture with Kaby Lake, Coffee Lake and Cannon Lake CPUs.

The Socket FT1 or BGA413 is a CPU socket released in January 2011 from AMD for its APUs codenamed Desna, Ontario, Zacate and Hondo. The uber name is "Brazos".


  1. Intel introduces ultra-mobile PC platform, The Register, 2007-04-18, retrieved 2010-07-20
  2. Poulsbo Chipset, Intel, 2008-10-09, retrieved 2010-07-20
  3. Renesas Licenses Third POWERVR SGX Core, Imagination Technologies, 2008-04-08, retrieved 2010-07-20
  4. Products (Formerly Poulsbo), Intel , retrieved 2010-07-20
  5. Installing on the Dell Mini 12, Canonical Ltd., 2008-12-17, retrieved 2009-04-15
  6. Intel's Poulsbo Driver A Bloody Mess?, Phoronix, 2009-01-31, retrieved 2010-07-20
  7. Intel Poulsbo DRM Proposed, But Rejected, Phoronix, 2009-03-19, retrieved 2010-07-20
  8. Intel Poulsbo Driver Runs On Fedora, Phoronix, 2009-05-14, retrieved 2010-07-20
  9. Intel GMA500 (Poulsbo) on Fedora 11: repository (with working 3D / compiz support), 2009-08-10, retrieved 2010-07-20
  10. Mandriva Linux 2010.0 RC 2 Poulsbo drivers, Mandriva, archived from the original on 2012-07-22, retrieved 2010-07-20
  11. Kernel Log: Coming in 2.6.39: Part 4: Drivers, The H Open
  12. What's new in Linux 2.6.39, The H Open
  13. Products (Formerly Whitmore Lake), Intel , retrieved 2010-07-30