User manual

12 GR-LEON4-ITX Development Board
User Manual
2.2 Board Block Diagram
The GR-LEON4-ITX Board provides the electrical functions and interfaces as represented in
the block diagram, Figure 2-4.
The Main PCB is a Mini-ITX format board (170 x 170mm) and can be used 'stand-alone' on
the bench-top simply using an external +5V power supply.
2.3 Memory
The memory configuration installed on the board comprises:
• 2 Gbit (256Mbyte) of DDR2-400 RAM memory, organised as 1 bank x 64Mword x
32 bits wide
• 64Mbit of Flash PROM, in serial SPI flash device
DDR2 RAM
Two 16 bit wide DDR2 memory devices are included on the board (Hynix 1Gbit
HYB18T1G160BF-5), providing 32 bit data connection to the processor with a total of
256MByte of volatile RAM memory.
SPI FLASH
A single Serial Flash PROM device (Intel/Numonyx M25P64-VMF6TP) is installed on the
board, connected to the SPIM SPI interface of the processor.
This device provides 64Mbit of Non-Volatile storage, organised as 8Mbyte x 8 bits.
This device can be used for Program storage or as a boot device for the board.
© Aeroflex Gaisler AB August 2010, Rev. 0.3
Figure 2-4: Block Diagram of GR-LEON4-ITX board
USB 2.0
HOSTI/F
USB-B
DEVICE I/F
JTAG
I/F
USB - DSU
5V
PCI I/F
MOUSE/
KEYB I/F
PCI I/F
ETHERNET
I/F
VIDEO I/F
CAN
I/F
UART
I/F
SPI
I/F
I2C
I/F
DUAL USB-A
HOST I/F
CONFIGURATION
USB 2.0
DEVICE I/F
DDR2
RAM
SPI
SERIAL
FLASH
PS/2
I/F
DUAL 10/100
ETHERNET
TRANSCEIVER
USER SPI
I/F
USER I2C
I/F
SPI
TEMP
MEASURE
I2C
REAL-TIME
CLOCK
2 x CAN
I/F
2 x RS232
UART I/F
LEON4
ASIC
USB 2.0
DSU I/F
DVI
TRANSCEIVER
USER I/O
POWER &
REGULATION