Other Information To obtain the most recent and complete documentation for this demonstration board, including: - User's Guide - Board Description - Board Schematics - Source Code - Application Examples - Links to Web Seminars please refer to the Microchip web site: www.microchip.com/usb USB PICtail™ Plus Daughter Board Overview The USB PICtail™ Plus Daughter Board is a USB demonstration board for evaluating Microchip Technology’s 16 and 32-bit USB product lines using the Explorer 16 development board. Features • Example circuits for USB device, embedded host and On-The-Go (OTG) • Both horizontal and vertical PICtail Plus Daughter Board connection interfaces Americas Asia/Pacific Europe Atlanta - 678-957-9614 Boston - 774-760-0087 Chicago - 630-285-0071 Dallas - 972-818-7423 Detroit - 248-538-2250 Kokomo - 765-864-8360 Los Angeles - 949-462-9523 Phoenix - 480-792-7200 Santa Clara - 408-961-6444 Toronto - 905-673-0699 Australia - Sydney - 61-2-9868-6733 China - Beijing - 86-10-8528-2100 China - Chengdu - 86-28-8665-5511 China - Hong Kong SAR - 852-2401-1200 China - Nanjing- 86-25-8473-2460 China - Qingdao - 86-532-8502-7355 China - Shanghai - 86-21-5407-5533 China - Shenyang - 86-24-2334-2829 China - Shenzhen - 86-755-8203-2660 China - Wuhan - 86-27-5980-5300 China - Xiamen - 86-592-2388138 China - Xian - 86-29-8833-7252 China - Zhuhai - 86-756-3210040 India - Bangalore - 91-80-4182-8400 India - New Delhi - 91-11-4160-8631 India - Pune - 91-20-2566-1512 Japan - Yokohama - 81-45-471-6166 Korea - Daegu - 82-53-744-4301 Korea - Seoul - 82-2-554-7200 Malaysia - Kuala Lumpur - 60-3-6201-9857 Malaysia - Penang - 60-4-227-8870 Philippines - Manila - 63-2-634-9065 Singapore - 65-6334-8870 Taiwan - Hsin Chu - 886-3-572-9526 Taiwan - Kaohsiung - 886-7-536-4818 Taiwan - Taipei - 886-2-2500-6610 Thailand - Bangkok - 66-2-694-1351 Austria - Weis - 43-7242-2244-39 Denmark - Copenhagen - 45-4450-2828 France - Paris - 33-1-69-53-63-20 Germany - Munich - 49-89-627-144-0 Italy - Milan - 39-0331-742611 Netherlands - Drunen - 31-416-690399 Spain - Madrid - 34-91-708-08-90 UK - Wokingham - 44-118-921-5869 01/02/08 Getting Started To get started, an Explorer 16 Development Board is required. The USB PICtail Plus Daughter Board can be attached to the Explorer 16 Development Board, either through the J5 connector, or by attaching to the edge of the Explorer 16 via the horizontal PICtail Plus Daughter Board connection interface. The USB PICtail Plus Daughter Board is capable of sourcing 100 mA to VBUS when operating as an embedded host or in OTG mode. If the desired application requires more than 100 mA for an embedded host application, then a +5V power supply must be attached to the +5V rail of the Explorer 16. OTG applications are limited to sourcing 100 mA on VBUS. Board Configurations There are four jumpers on the board to select the operational mode and optional features. JP1 connects a resistor divider from the output of the current limiting fuse to the OVERCURRENT pin of the PICtail Plus Daughter Board connection interface. This allows embedded host applications to determine if the attached device has tripped the 500 mA fuse. Jumpers 2, 3 and 4 are used to select between Device, Embedded Host and OTG modes, respectively. Only one of the three jumpers should be shorted at any point of time. Any other combinations can result in contention in the VBUS power rail. Application JP2 JP3 JP4 Current Sourcing Limit Device Short Open Open N/A Embedded Host (5V from Explorer 16 rail – no additional power supply attached) Open Short Open 100 mA(1) Embedded Host (5V from Explorer 16 rail – additional power supply attached to 5V rail) Open Short Open 500 mA Embedded Host (5V generated from boosting Explorer 16 3.3V rail) Open Open Short 100 mA OTG (dual role) Open Open Short 100 mA Note 1: The actual current source limit will vary depending on any additional load from the Explorer 16 or attached circuitry on the 5V rail. Caution should be used when drawing more than this limit of current from the 5V rail as the voltage regulator on the Explorer 16 may become hot and eventually enable its thermal shutdown feature. Firmware The Microchip USB Stack and application examples can be found at www.microchip.com/usb Signal Interface Function Microchip Technology Inc. • 2355 West Chandler Blvd. • Chandler, AZ 85224-6199 www.microchip.com The Microchip name and logo and the Microchip logo are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. PICtail is a trademark of Microchip Technology Incorporated in the U.S.A. and other countries. All other trademarks mentioned herein are property of their respective companies. © 2008, Microchip Technology Incorporated, Printed in the U.S.A. All Rights Reserved. 1/08 *DS39909A* DS39909A I/O Pin Description VBUS I 65 VBUS voltage level input for level detection USBID I 68 ID detection for OTG applications PGOOD I 66 Power good out of MCP1253 SHDN O 67 Shutdown signal for MCP1253 OVERCURRENT I 43 Overcurrent detection for embedded host applications (optional) D+ I/O 27 Data + line D- I/O 29 Data - line USB PICtail™ Plus Daughter Board Board Schematic DS39909A