News
 

Bookmark and Share

(2) 

While virtually all consumer hard disk drives that are shipped today are designed to work with Serial ATA interconnection, there is growing demand for external HDDs that should support interconnection standards like USB 2.0. While there is a number of single-chip Parallel ATA-to-USB converters, up to today the world did not have a single Serial ATA-to-USB 2.0 chip, announced by UK-based Oxford Semiconductor.

Oxford Semiconductor’s OXU921S is a highly integrated bridge chip that simplifies implementation of external hard disk and optical disk drives for both PC and Mac platforms. The OXU921S features an integral SATA PHY, USB2.0 PHY and ARM7TDMI processor. The USB mass storage device firmware provided with the chip ensures its full compatibility with standard operating system drivers.

The bridge chip’s embedded USB2.0 Link and PHY support full and high-speed modes and offer backwards compatibility with USB1.1. The OXU921S has a 6KB cache for USB data, facilitating a data transmission speed up to 480Mbps, or about 60GB. The integrated SATA core and PHY operate at 1.50GHz, resulting in a disk interface data rate of 150MB/s.

The use of ARM7 processor, with 8KB close coupled RAM, means users are free to create highly differentiated external SATA drive enclosures through custom firmware development. 12 GPIOs further extend the device’s capability. An embedded UART is provided for use in code development and debug and firmware can be programmed through the USB port to help simplify manufacturing and in-field updates.

To optimise the firmware development process, the OXU921S shares a common software base with other Oxford Semiconductor devices and is backed by a full development kit and evaluation board. The OXU921S is available for sub-$5.5 in quantities exceeding 100 thousand units.

The company did not say whether any major HDD maker plans to adopt the Serial ATA-to-USB 2.0 chip.

Discussion

Comments currently: 2
Discussion started: 02/16/05 10:32:26 PM
Latest comment: 02/17/05 07:28:19 AM

[1-1]

1. 
"... facilitating a data transmission speed up to 480Mbps, or about 60GB"
Isn't that supose to be 60 MBps ?
0 0 [Posted by:  | Date: 02/16/05 10:32:26 PM]
Reply

[1-1]

Add your Comment




Related news

Latest News

Monday, April 14, 2014

8:23 am | Microsoft Vows to Release Xbox 360 Emulator for Xbox One. Microsoft Xbox One May Gain Compatibility with Xbox 360 Games

Tuesday, April 1, 2014

10:39 am | Microsoft Reveals Kinect for Windows v2 Hardware. Launch of New Kinect for Windows Approaches

Tuesday, March 25, 2014

1:57 pm | Facebook to Acquire Virtual Reality Pioneer, Oculus VR. Facebook Considers Virtual Reality as Next-Gen Social Platform

1:35 pm | Intel Acquires Maker of Wearable Computing Devices. Basis Science Becomes Fully-Owned Subsidiary of Intel

Monday, March 24, 2014

10:53 pm | Global UHD TV Shipments Total 1.6 Million Units in 2013 – Analysts. China Ahead of the Whole World with 4K TV Adoption

10:40 pm | Crytek to Adopt AMD Mantle Mantle API for CryEngine. Leading Game Developer Adopts AMD Mantle

9:08 pm | Microsoft Unleashes DirectX 12: One API for PCs, Mobile Gadgets and Xbox One. Microsoft Promises Increased Performance, New Features with DirectX 12

3:33 pm | PowerVR Wizard: Imagination Reveals World’s First Ray-Tracing GPU IP for Mobile Devices. Imagination Technologies Brings Ray-Tracing, Hybrid Rendering Modes to Smartphones and Tablets

2:00 pm | Nokia Now Expects to Close Deal with Microsoft in Q2. Sale of Nokia’s Division to Close Next Month