User manual

3 GR-LEON4-ITX Development Board
User Manual
TABLE OF CONTENTS
1 INTRODUCTION...........................................................................................................7
1.1 Overview......................................................................................................................7
1.2 References...................................................................................................................9
1.3 Handling....................................................................................................................... 9
1.4 Abbreviations...............................................................................................................9
2 ELECTRICAL DESIGN...............................................................................................10
2.1 LEON4 ASIC..............................................................................................................10
2.2 Board Block Diagram.................................................................................................12
2.3 Memory...................................................................................................................... 12
DDR2 RAM................................................................................................................ 12
SPI FLASH.................................................................................................................12
2.4 PCI Slots.................................................................................................................... 13
2.5 Ethernet Interface......................................................................................................13
2.6 USB Host...................................................................................................................13
2.7 USB Device................................................................................................................ 14
2.8 USB Debug Communication Link...............................................................................14
2.9 Video.......................................................................................................................... 14
2.10 PS2 Keyboard/Mouse Interface.................................................................................15
2.11 Serial Interface (RS232).............................................................................................15
2.12 Serial Debug Support Interface (LVTTL)....................................................................16
2.13 CAN Interface............................................................................................................16
Configuration of Bus Termination...............................................................................17
Configuration of Slew Rate.........................................................................................17
2.14 I2C interface...............................................................................................................17
2.15 SPI interface..............................................................................................................18
2.16 GPIO.......................................................................................................................... 19
2.17 Debug Support Unit Interfaces...................................................................................20
2.18 Other Auxiliary Interfaces and Circuits.......................................................................21
Oscillators and Clock Inputs.......................................................................................21
Power Supply and Voltage Regulation......................................................................24
Reset Circuit and Button............................................................................................24
Watchdog................................................................................................................... 24
JTAG interface...........................................................................................................25
eASIC SPI Configuration Interface.............................................................................25
3 SETTING UP AND USING THE BOARD...................................................................26
4 INTERFACES AND CONFIGURATION.....................................................................27
4.1 List of Connectors......................................................................................................27
4.2 List of Oscillators, Switches and LED's......................................................................38
4.3 List of Jumpers...........................................................................................................39
© Aeroflex Gaisler AB August 2010, Rev. 0.3