NEC µPD720171 Wireless USB Host Controller

NEC recently introduced the µPD720171, a new Wireless Universal Serial Bus
(Wireless USB) host controller which enables high-speed, wireless data
transmission between computers and external peripherals such as printers,
digital cameras, external storage equipment, and wireless hubs. The µPD720171
Wireless USB host controller works up to 480 Mbps for data transfer. NEC’s
µPD720171 Wireless USB host controller complies with WiMedia MAC specification and Intel’s Wireless Host Controller Interface Specification.

NEC’s uPD720171 Wireless USB Host Controller IC

Applications of  uPD720171 Wireless USB host controller:

• PC peripherals:
  • PCI Express MiniCard
  • ExpressCard
  • PCI Express Card

About Wireless USB
Wireless USB technology is currently
making it possible for designers to expand the boundaries of computing and
digital entertainment to discover new ways for consumers to enjoy digital media.
Developed by the USB-IF, Wireless USB technology is an extension of the current
USB 2.0 standard, which has been hailed as the next-generation interface
standard for computers and multimedia consumer electronics devices. Products
based on Wireless USB technology can transfer up to 480  Mbps (megabits per
second) of data.

NEC’s µPD720171 Wireless USB host controller - Block Diagram

Features of  µPD720171 Wireless USB host controller:

• Compliant with Wireless Universal Serial Bus specification Revision 1.0,
  that released by USB Implementers Forum, Inc
  • Supports eight speed of data rate as follows; 53.3 / 80.0 / 106.7 / 160
    / 200 / 320 / 400 /, 480 Mbps
  • Supports three USB compliant data transfer type as follows; Control /
    Bulk / Interrupt transfer. (Except for Isochronous transfer type) and
    Wireless USB compliant  Device Notification
  • Supports up to 32 connections to physical Wireless USB compliant devices
  • Supports AES-128 CCM
• Compliant with Intel’s Wireless Host Controller Interface (WHCI)
  Specification revision 0.96
• Compliant with WiMedia Distributed Media Access Controller (MAC) for
  Wireless Networks release 1.2
• Compliant with WiMedia MAC-PHY interface specification revision 1.2
• Compliant with PCI Express Base Specification 1.1
• Supports ExpressCardTM Standard Release1.0
• Supports PCI Express Mini Card Electromechanical Specification Revision
  1.2
• Supports PCI Express Card Electromechanical Specification Revision 1.1
• Supports PCI Bus Power Management Interface Specification revision 1.1
• Self Beaconing Device
• Supports distributed reservation protocol
• Operational registers are direct-mapped to PCI memory space
• Supports indicator for host controller status with LED
• Supports Serial Peripheral Interface (SPI) type ROM
• System clock is generated by 30 MHz crystal.
• 3.3 V and 1.5 V power supply
• Package: 129-pin plastic FBGA (9×9)

Samples of NEC’s PD720171 Wireless USB host controller are available at $10.
Reference boards for PD720171 are also available upon request.

References:

• http://www.necel.com/cwusb/en/download/S18998EJ3V0PB00.pdf  (113KB)
• http://www.necel.com/news/en/archive/0808/1901.html?src=hp1 (Press release
  of NEC’s uPD720171 Wireless USB Host Controller)
• http://www.necel.com/cwusb/en/newproducts.html