Renesas RH850/U2A 144pin

Table of Contents
1. Overview ..................................................................................................................... 1
1.1 Package Components ........................................................................................................................... 1
1.2 Supported Main Boards ......................................................................................................................... 1
1.3 Main Features ....................................................................................................................................... 1
1.4 Piggyback Board Views ......................................................................................................................... 2
1.5 Mounting of the Device .......................................................................................................................... 4
2. Jumpers, Connectors, Switches and LEDs ................................................................. 5
2.1 Jumper Overview .................................................................................................................................. 6
2.2 Connector Overview .............................................................................................................................. 8
2.3 LED Overview ....................................................................................................................................... 9
3. Power Supply ............................................................................................................ 10
3.1 Board Power Connection .................................................................................................................... 10
3.2 Voltage Distribution ............................................................................................................................. 11
3.3 Device Core Voltage (VDD) Selection ................................................................................................ 12
3.4 Current Measurement Bridges ............................................................................................................ 12
3.5 Power Supply LEDs ............................................................................................................................ 12
4. Clock Supply ............................................................................................................. 13
4.1 Main Oscillator ..................................................................................................................................... 13
4.2 Programmable Oscillator ..................................................................................................................... 13
4.3 X1 and X2 on CN15 ............................................................................................................................ 14
5. Debug and Flash Programming Interfaces ................................................................ 15
6. Other Circuitry ........................................................................................................... 16
6.1 Operation Mode Selection ................................................................................................................... 16
6.2 RESET Switch ..................................................................................................................................... 18
6.3 Signaling LEDs .................................................................................................................................... 19
6.4 Pull-Up/Pull-Down Pin Header ............................................................................................................ 20
7. Connectors ................................................................................................................ 21
7.1 Connectors to the Main Board CN1 to CN3 ........................................................................................ 21
7.1.1 Main Board Connector CN1 ......................................................................................................... 21
7.1.2 Main Board Connector CN2 ......................................................................................................... 23
7.1.3 Main Board Connector CN3 ......................................................................................................... 25
7.2 Debug Connector CN4 ........................................................................................................................ 28
7.3 Pull-Up/Pull-Down Pin Header CN12 .................................................................................................. 28
7.4 Device Ports Connectors CN13 to CN16 ............................................................................................ 29
7.4.1 Device Ports Connector CN13 ..................................................................................................... 29
7.4.2 Device Ports Connector CN14 ..................................................................................................... 30
7.4.3 Device Ports Connector CN15 ..................................................................................................... 31
7.4.4 Device Ports Connector CN16 ..................................................................................................... 32