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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

Brand	Renesas
Model	RH850/U2A 144pin
Category	Network Hardware
Language	English

Renesas RH850/U2A 144pin User Manual

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Renesas RH850/U2A 144pin Specifications