USB with NXP Microcontrollers

NXP Advantages

NXP's microcontroller portfolio features the latest USB technologies, including full- and high-speed USB 2.0 device, host, and On-The-Go (OTG) functions. NXP supports all four transfer types: control, interrupt, bulk, and, in particular, isochronous, which is required for streaming audio. NXP MCUs provide designers a range of special USB features that improve overall performance and speed time-to-market:
  • Fully-Certified USB Products
  • On-Chip ROM Drivers
  • Integrated Hi-Speed and/or Full-Speed PHY
  • Free USB Host and Device Software
  • Additional USB Features

Fully-Certified USB Products

NXP is a leading member of the USB-IF, the organization that maintains the USB specifications and verifies USB compliance. NXP's USB-equipped ARM MCUs are submitted for certification, so designers can be certain that their systems will deliver the best in reliability and plug-and-play operation. As of the end of 2008, most of our USB 2.0-based processors with host and device functions have been certified; the OTG function is in-process. A complete list of compliant products appears on the USB-IF web site, www.usb.org.

On-Chip USB ROM Drivers

NXP's on-board USB ROM drivers pack the entire USB stack, USB classes, and low-level drivers right into the microcontroller's ROM, eliminating the need to develop and debug this complex software yourself. Placing the USB drivers in the ROM frees up valuable memory space that you can then use for your application. These drivers have been thoroughly tested by NXP and outside test houses and are used to gain USB logo certification after passing the rigorous testing requirements at USB-IF.

Integrated Hi-Speed and/or Full-Speed PHY

A full-speed or high-speed PHY is integrated into NXP's USB microcontrollers and provides the bridge between the digital and modulated parts of the interface. The integration of the PHY on the MCU saves component cost and simplifies system design. For example, the LPC1800 and LPC4300 microcontrollers support two channels of High-Speed USB 2.0 Host/Device/OTG and have an on-chip High-Speed PHY.

Free USB Host and Device Software

USB development doesn't have to be expensive or difficult. To help you save time and money, NXP provides complete ready-to-go USB example applications for host and device modes that work out of the box on multiple tool chains — all at no charge. In addition to NXP's own complimentary USB packages, NXP partners with leading software companies to provide state-of-the-art USB firmware. For a complete list of USB software options, please see the Support section of this page.

Additional USB Features

NXP's additional USB features include the following:
  • Host controllers are OHCI-/EHCI-compliant.
  • Dedicated DMA lets the USB interface operate with minimal CPU intervention.
  • SoftConnect™ uses software to determine when a USB device will connect to the bus.
  • GoodLink™ uses an LED to indicate that a USB device has been enumerated and configured on the bus. (To save power, the LED is turned off during suspend.)
  • Double-buffering maximizes throughput on bulk and isochronous endpoints.
  • Multiple USB ports let devices be configured as hosts, devices, or both.
  • USB data buffer provides flexible configuration of endpoint FIFO sizes.

Products

NXP offers more than 80 USB MCU options for Cortex-M0, Cortex-M3, Cortex-M4, ARM9, and ARM7 microcontrollers (see the comparison table and products below). NXP MCUs special USB features include:

Comparison Table

Core Product On-Chip Controller No. of Cntrls No. of Ports On-chip PHY Certified
Device  Host  OTG
ARM7TDMI-S LPC2141 FS - - 1 1 Device FS
LPC2142 FS - - 1 1 Device FS
LPC2144 FS - - 1 1 Device -
LPC2146 FS - - 1 1 Device -
LPC2148 FS - - 1 1 Device FS
LPC2158 FS - - 1 1 Device -
               
LPC2361 FS FS FS 1 1 Device, Host FS
LPC2362 FS FS FS 1 1 Device, Host FS
LPC2364 FS - - 1 1 Device FS
LPC2366 FS - - 1 1 Device FS
LPC2368 FS - - 1 1 Device FS
LPC2378 FS - - 1 1 Device FS
LPC2387 FS FS FS 1 1 Device, Host FS
LPC2388 FS FS FS 1 2 Device, Host FS
               
LPC2420 FS FS FS 1 2 Device, Host -
LPC2458 FS FS FS 1 2 Device, Host -
LPC2460 FS FS FS 1 2 Device, Host -
LPC2468 FS FS FS 1 2 Device, Host FS
LPC2470 FS FS FS 1 2 Device, Host -
LPC2478 FS FS FS 1 2 Device, Host -
               
LPC2880 HS - - 1 1 Device HS
LPC2888 HS - - 1 1 Device HS
               
ARM720T LH79524 FS - - 1 1 Device -
LH79525 FS - - 1 1 Device -
               
ARM922T LH7A404 FS FS - 1 3 (2 host) Device, Host -
LH7A400 FS - - 1 1 Device -
               
ARM968 LPC2921 FS - - 1 1 Device -
LPC2923 FS - - 1 1 Device -
LPC2925 FS - - 1 1 Device -
LPC2926 FS   FS 1 1 Device  
LPC2927 FS - FS 1 1 Device -
LPC2929 FS - FS 1 1 Device FS
LPC2930 FS FS FS 1 2 Device, Host -
LPC2939 FS FS FS 1 2 Device, Host -
               
ARM926EJ-S LPC3180/01 FS FS FS 1 1 - -
LPC3220 FS FS FS 1 1 - -
LPC3230 FS FS FS 1 1 - -
LPC3240 FS FS FS 1 1 - -
LPC3250 FS FS FS 1 1 - -
               
LPC3130 HS HS HS 1 1 Device, Host, OTG -
LPC3131 HS HS HS 1 1 Device, Host, OTG HS
LPC3151 HS HS HS 1 1 Device, Host, OTG -
LPC3152 HS HS HS 1 1 Device, Host, OTG HS
LPC3153 HS HS HS 1 1 Device, Host, OTG -
LPC3154 HS HS HS 1 1 Device, Host, OTG -
               
Cortex-M3 LPC1342 FS - - 1 1 Device FS
LPC1343 FS - - 1 1 Device FS
LPC1345 FS - - 1 1 Device -
LPC1346 FS - - 1 1 Device -
LPC1347 FS - - 1 1 Device -
LPC1547 FS - - 1 1 Device -
LPC1548 FS - - 1 1 Device -
LPC1549 FS - - 1 1 Device FS
LPC1751 FS - - 1 1 Device FS
LPC1752 FS - - 1 1 Device -
LPC1754 FS FS FS 1 1 Device, Host -
LPC1756 FS FS FS 1 1 Device, Host -
LPC1758 FS FS FS 1 1 Device, Host -
LPC1759 FS FS FS 1 1 Device, Host -
LPC1764 FS - - 1 1 Device -
LPC1765 FS FS FS 1 1 Device, Host -
LPC1766 FS FS FS 1 1 Device, Host -
LPC1768 FS FS FS 1 1 Device, Host FS
LPC1769 FS FS FS 1 1 Device, Host -
LPC1774 FS - - 1 1 Device -
LPC1776 FS FS FS 1 1 Device, Host -
LPC1777 FS FS FS 1 1 Device, Host -
LPC1778 FS FS FS 1 1 Device, Host -
LPC1785 FS FS FS 1 1 Device, Host -
LPC1786 FS FS FS 1 1 Device, Host -
LPC1787 FS FS FS 1 1 Device, Host -
LPC1788 FS FS FS 1 1 Device, Host -
LPC1820 HS HS HS 1 1 Device, Host -
LPC1822 HS HS HS 1 1 Device, Host -
LPC1823 HS HS HS 1 1 Device, Host -
LPC1825 HS HS HS 1 1 Device, Host -
LPC1827 HS HS HS 1 1 Device, Host -
LPC1830 HS HS HS 2 2 Device, Host -
LPC1833 HS HS HS 2 2 Device, Host -
LPC1837 HS HS HS 2 2 Device, Host FS
LPC1850 HS HS HS 2 2 Device, Host FS
LPC1853 HS HS HS 2 2 Device, Host FS
LPC1857 HS HS HS 2 2 Device, Host FS
               
Cortex-M4 LPC4072 FS FS FS 1 2 Device, Host, OTG -
LPC4074 FS FS FS 1 2 Device, Host, OTG -
LPC4076 FS FS FS 1 2 Device, Host, OTG -
LPC4078 FS FS FS 1 2 Device, Host, OTG -
LPC4088 FS FS FS 1 2 Device, Host, OTG -
LPC4320 HS HS HS 1 1 Device, Host, OTG -
LPC4320 HS HS HS 1 1 Device, Host, OTG  
LPC4322 HS HS HS 1 1 Device, Host, OTG -
LPC4323 HS HS HS 1 1 Device, Host, OTG -
LPC4325 HS HS HS 1 1 Device, Host, OTG -
LPC4327 HS HS HS 1 1 Device, Host, OTG -
LPC4330 HS HS HS 2 2 Device, Host, OTG -
LPC4333 HS HS HS 2 2 Device, Host, OTG -
LPC4337 HS HS HS 2 2 Device, Host, OTG -
LPC4350 HS HS HS 2 2 Device, Host, OTG -
LPC4353 HS HS HS 2 2 Device, Host, OTG -
LPC4357 HS HS HS 2 2 Device, Host, OTG -
               
Cortex-M0 LPC11U12 FS - - 1 1 Device -
LPC11U13 FS - - 1 1 Device -
LPC11U14 FS - - 1 1 Device FS
LPC11U23 FS - - 1 1 Device -
LPC11U24 FS - - 1 1 Device LS, FS
LPC11U34 FS - - 1 1 Device -
LPC11U35 FS - - 1 1 Device -
LPC11U36 FS - - 1 1 Device -
LPC11U37 FS - - 1 1 Device FS
LPC11U37H FS - - 1 1 Device -
               
Cortex-M0+ LPC11U67 FS - - 1 1 Device -
LPC11U68 FS - - 1 1 Device LS, FS
               

Support

Software

Application Notes

Articles

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