USB 2.0 Promoter Group Releases High Speed Inter-Chip 1.1 Specification

The USB 2.0 Promoter Group, responsible for the development of the USB 2.0 specification with support from the USB Implementers Forum (USB-IF), announced the public availability of the High Speed Inter-Chip (HSIC) 1.1 specification, a supplement to the USB 2.0 specification. The new specification supports faster chip-to-chip communication, at speeds up to 480 Mbps, allowing for multiple high bandwidth operations on devices like 3G/4G handsets, smartphones, set-top boxes, mobile internet devices and connectivity within the PC.

Defined to meet the increasing bandwidth needs of these devices, the specification allows the easy integration of multiple high speed capabilities, such as 3G/4G modems, WiMAX, 802.11n and storage peripherals, as well as other USB based input devices like keypads and control panels. The HSIC permits the device to move data between the various components at higher bandwidth and with improved power efficiency. It also eliminates the need for analog PHYs by providing a digital signal interconnect between the SOCs and their IC peripherals.

“The Inter-Chip specification has been a pivotal building block for developers wanting to integrate the USB interface inside mobile applications,” said Jeff Ravencraft, USB-IF president. “With the High Speed Inter-Chip specification, manufacturers can incorporate a solution that will carry benefits directly to the consumer, allowing them to experience improved performance and enhanced battery life. Mobile devices supporting this technology are forecasted to be available in the 2008 time frame and continue to ramp in 2009.”

The HSIC specification remains fully compatible with existing USB software stacks and provides all data transfer needs through a single unified USB software stack. The High Speed Inter-Chip USB 2.0 specification is now available online.

About the USB-IF
The non-profit USB Implementers Forum, Inc. was formed to provide a support organization and forum for the advancement and adoption of USB technology. The USB-IF facilitates the development of high-quality compatible USB devices, through its logo and compliance program and promotes the benefits of USB and the quality of products that have passed compliance testing.