| USB Power Delivery Spec Finalized |
| Author: Cássio Lima |
Date: July 19, 2012 - 8:48 AM PST |
| Category: Bus |
| More Info: http://www.usb.org/developers/docs/ |
The USB 3.0 Promoter Group, in conjunction with the USB 2.0 Promoter Group, has just announced the completion of the USB power delivery specification, which enables increased power delivery through USB cables and connectors. The specification expands cable bus power capabilities in USB applications, supplying higher voltage and current to deliver power up to 100 watts over USB certified cables. It is capable of delivering higher power to charge notebooks and external hard disk drives. “USB Power Delivery enables a path to greatly reduce electronic waste by eliminating proprietary, platform-specific chargers,” said Brad Saunders, USB 3.0 Promoter Group Chairman. “We envision a significant move toward universal charging based on this specification, most notably for charging notebook PCs using standardized USB power bricks or when connected to USB hubs and desktop displays that integrate USB Power Delivery capabilities.”
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| Computex 2012: Finally, Thunderbolt Connection for the PC Platform |
| Author: Gabriel Torres |
Date: June 5, 2012 - 6:51 AM PST |
| Category: Bus |
Thunderbolt, formerly known by its codename “Light Peak,” is a new transmission interface developed by Intel that has been available on the Mac computer line-up since the release of the Macbook Pro, in 2011. This is rather ironic, since for decades, Intel was a synonym for PCs. But finally, Intel officially announced the support for Thunderbolt on the PC, with the release of its second-generation Thunderbolt controllers, DSL3310 and DSL3510, codenamed “Cactus Ridge.” During this Computex, Intel showcased motherboards from ASUS, Gigabyte, and Foxconn and laptops from ASUS, Gigabyte, Lenovo, and others with an integrated Thunderbolt controller. The Thunderbolt connection allows the transfer of data (using the PCI Express protocol) and video (using the DisplayPort protocol) through a single cable. The maximum theoretical transfer rate is 10 Gbps, which allows a full-length HD movie to be transferred in 30 seconds and backups 1 TB of data in less than five minutes, according to Intel. Cables can be electrical, with a maximum length of 9.8 feet (3 meters), or optical, with a maximum length of 65.6 feet (20 meters). Thunderbolt makes use of a mini DisplayPort connector (mini DP), and the cables have circuitry at their ends, making them “active” cables. The connector is the same for both electric and optical cables. You can connect the Thunderbolt cable directly to a video monitor with a mini DP connector (or to a full-sized DisplayPort connector using an adapter) or to a Thunderbolt-enabled external storage device. Since Thunderbolt is based on existing protocols, no additional drivers need to be installed. 
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Figure 1: Thunderbolt controllers for 2012
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Figure 2: Thunderbolt port on a motherboard from ASUS
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Figure 3: Thunderbolt electrical cable
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| IDF 2010: Intel Shows Light Peak Technology |
| Author: Cássio Lima |
Date: September 14, 2010 - 8:56 AM PST |
| Category: Bus |
| More Info: http://techresearch.intel.com/UserFiles/en-us/File/OpticalIO/LightPeak... |
During the IDF 2010, Intel showcased a new technology to interconnect electronic devices, which may be the reason why the company is resisting in adopting USB 3.0 technology. Light Peak is a high-speed optical cable technology that promises to provide a maximum transfer rate of 10 Gbps. Just to give you an idea, USB 3.0 provides a maximum transfer rate of 4.8 Gbps. In the picture below you can see the transfer rate provided by a Light Peak external hard drive transferring a Blu-Ray movie (768 MB/s or 7.7 Gbps). With Light Peak you can transfer a full-length Blu-Ray movie in less than 30 seconds. Another advantage of the Light Peak technology is the ability to run multiple protocols simultaneously over a single cable, enabling the technology to connect devices such as peripherals, workstations, displays, disk drives, docking stations, and more. According to Intel, Light Peak devices will reach the market next year. 
click to enlarge
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| HyperTransport 3.0 Gets Ratification |
| Author: Rodrigo Chia |
Date: April 25, 2006 - 1:25 PM PST |
| Category: Bus |
| More Info: http://www.hypertransport.org |
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The HyperTransport Consortium this week released version 3.0 of its interconnect specification. It extends the 1.4 GHz dual data rate maximum clock of HT 2.0 up to 2.6 GHz and delivers a maximum bandwidth of 41.6 GB/s. The revision also brings new features such as AC coupling mode, hot plugging, un-ganging mode and dynamic power management for the support of extended signal transmission distance. There is currently no info on products using HT 3.0.
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| Wireless USB hub design unveiled |
| Author: Rodrigo Chia |
Date: December 12, 2005 - 3:21 PM PST |
| Category: Bus |
| More Info: http://www.wisair.com/press/wisair-unveils-wireless-usb-hub-reference-... |
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Wisair has announced a platform for a new equipment that will offer wireless connectivity to existing USB devices. The reference design consists of a WUSB dongle, to be plugged to the PC, and a WUSB hub featuring two or four ports for printers, cameras, audio players and scanners, among other peripherals. It will connect wirelessly to the dongle within 30 feet providing a 480 Mb/s bandwith. Wisair’s platform will be demonstrated at the Consumer Electronics Show (CES) in January.
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| TI launches PCI Express-to-PCI bridge |
| Author: Rodrigo Chia |
Date: November 3, 2005 - 9:43 AM PST |
| Category: Bus |
| More Info: http://focus.ti.com/docs/prod/folders/print/xio2000.html |
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Texas Instruments has announced the XIO2000 PCI Express-to-PCI bridge. According to the company, the device has a x1 lane upstream port connection to PCI Express root complex, providing support for up to six x1 PCI endpoint devices on its downstream side. The XIO2000, which comes in a 201-pin Microstar BGA package, is fully compliant to the PCI Express to PCI/PCI-X Bridge Specification Revision 1.0. Suggested price in 1,000-unit quantities is USD 14.95.
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| Epox launches Bluetooth 1.2 adapter |
| Author: Rodrigo Chia |
Date: April 29, 2005 - 10:51 AM PST |
| Category: Bus |
| More Info: http://bluetooth.epox.com/htm/dongle.htm |
EPoX has launched a new Bluetooth Dongle, the BT-DG07A, conforming to Bluetooth v1.2 (Class 1) specifications. This standard is meant to provide superior voice quality, reduced interference from other wireless sources and faster connection settings. The BT-DG07A offers a transmission range of up to 250 meters (0.15 mile) and uses a CSR integrated chip that allows better performance when simultaneously communicating with multiple client devices. Shipment will begin in May.
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| USB to SATA bridge chip from Oxford |
| Author: Rodrigo Chia |
Date: February 16, 2005 - 7:39 PM PST |
| Category: Bus |
| More Info: http://www.oxsemi.co.uk/pages/usb/index.html |
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Oxford Semiconductor released a USB to SATA bridge chip that promises to simplify implementation of external hard drives and optical drives for PCs and Macs. The OXU921S chip is a 128-pin device with integrated SATA PHY, USB 2.0 PHY and ARM7 TDMI processor. The firmware allows compatibility with standard operating system drivers. The USB 2.0 link and PHY support full and high speed modes as well as backward compatibility with USB 1.1. Data transmission speed reaches 480 Mb/s and disk interface data rate is 150 MB/s.
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| Bluetooth-USB adapter from Gigabyte |
| Author: Rodrigo Chia |
Date: December 28, 2004 - 7:23 PM PST |
| Category: Bus |
| More Info: http://tw.giga-byte.com/Communication/Products/Product_Bluetooth_GN-BT... |
Gigabyte has released its second generation Bluetooth USB adapter (GN-BTD02) with wireless range of up to 100 meters. It offers a 723 Kbps data rate and supports up to seven Bluetooth devices. LEDs indicate power status (green) and Bluetooth links (blue). The GN-BTD02 is available with silver finish casing and wine colored accents. Suggested retail price is USD 58.
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