User manual

8 GR-LEON4-ITX Development Board

User Manual

The PCB contains the following main items as detailed in section 2 of this document:

• LEON4 ASIC with Dual Core Leon4 architecture

• Memory

• DDR2-400 RAM 256 MByte (2x 1Gbit HYB18T1G160BF-5)

• SPI program FLASH 64Mbit (1x M25P64 SPI prom)

• Power, Reset, Clock and Auxiliary circuits

• Interface circuits required for the features listed below

The interface connectors on the Front edge of the board provide:

• Dual PCI (32 bit) mother-board slots

• Dual RJ45 10/100 Mbit RMII Ethernet interface (DP83848VV with RJ45 jack)

• Dual USB2.0 (USB-A) Host Interface (ISP1504A)

• USB2.0 Device (USB-B) Interface (ISP1504A)

• USB2.0 Debug Comm. Link (USB-B) Interface (ISP1504A)

• DVI-I (Analog and Digital) Video Interface (Chrontel CH7301C)

• PS2 Keyboard/Mouse Interface

The interface connectors on the Back edge of the board provide:

• +5V input power connector

• JTAG Debug interface

Additionally, on-board headers and components provide access to the following functions/

features:

• 44 pins General Purpose I/O pins

• 25 on 0.1” pin headers

• 8 on DIP switch

• 3 on Push button switches

• 8 connected to LED indicators

• I2C interface with on-board Real-Time Clock, and user connections on 0.1” header

• SPI interface, with on-board Temperature measurement, and user connections on

0.1” header

• Dual CAN bus interface (SN65HVD230)

• Two Serial UART interface (RS232) with D9 Sub female connectors

• ATX Style power connector

Debug interface support is demonstrated on the board with support for debugging via the

following interfaces:

• Push Buttons for RESET and DSU-BREAK

• LED indicators for POWER, ERRORN, DSU Active

• Assorted jumpers and Test Points for configuration and Test of the board

To enable convenient connection to the interfaces, most connector types and pin-outs are

compatible with the standard connector types for these types of interfaces.