APPLICATION NOTE R01AN1051EJ0100 R8C/3MK Group Rev.1.00 Mar 21, 2012 USB-to-Serial Communication Conversion Demo Board R0K5R8C3MDU30BR Instruction Manual Introduction This document is an instruction manual for the R0K5R8C3MDU30BR that enables USB-to-Serial communication conversion using the USB Peripheral function and serial communication function in R8C/3MK Group MCUs. Target Device R8C/3MK Group Contents 1. Preface .............................................................................................................................................. 2 2. Important ........................................................................................................................................... 3 3. Precautions for Safety....................................................................................................................... 5 4. Demo Board Functions ..................................................................................................................... 8 5. Related Documents........................................................................................................................... 8 6. Demo Board Description ................................................................................................................... 9 7. Setting up the Demo Board............................................................................................................. 12 8. Operating Instructions ..................................................................................................................... 15 2 9. I C demo communication protocol .................................................................................................. 23 10. SSU demo communication protocol................................................................................................ 28 11. Circuit Diagram................................................................................................................................ 34 12. Parts Layout Diagram ..................................................................................................................... 34 13. Parts List ......................................................................................................................................... 34 R01AN1051EJ0100 Rev.1.00 Page 1 of 38 Mar 21, 2012 R8C/3MK Group USB-to-Serial Communication Conversion Demo Board R0K5R8C3MDU30BR Instruction Manual 1. Preface This document provides hardware setting instructions, operating instructions and usage notes for the R0K5R8C3MDU30BR to enable USB-to-Serial communication conversion using the USB Peripheral function and serial communication function in R8C/3MK Group MCUs. Before using the demo board, please refer to 7.1 Bundled Accessories Confirmation to confirm you have all accessories bundled with the demo board package. If you have any questions concerning the demo board, please contact the closest Renesas Electronics Corp., Renesas Solutions Corp., or Renesas Electronics Sales Corp. office. R01AN1051EJ0100 Rev.1.00 Page 2 of 38 Mar 21, 2012