iMX233-OLINUXINO-MICRO Olimex Ltd., iMX233-OLINUXINO-MICRO Datasheet - Page 28

• Manufacturer Part Number: iMX233-OLINUXINO-MICRO
• Description: Development Boards & Kits - ARM OLINUXINO i.MX233 MICRO LINUX SBC
• Manufacturer: Olimex Ltd.

Specifications of iMX233-OLINUXINO-MICRO

• Rohs: yes
• Product: Development Boards
• Tool Is For Evaluation Of: MCIMX233CAG4C
• Core: ARM926EJ-S
• Interface Type: Ethernet, USB
• Operating Supply Voltage: 5 V
• Description/function: Single Board Linux Computer i.MX233 ARM926J at 454 MHz with UB host, TV-out (PAL / NTSC), 2x30 GPIOs, SD
• Dimensions: 76.2 mm x 43.2 mm
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Tradename: OLinuXino

OLIMEX© 2012
OLinuXino-MICRO user's manual
6.3 UEXT connector
OLIMEX offers board extensions which can be connected via UEXT interface. OLinuXino-MICRO
board lacks UEXT connector but it can be formed using the signals on the CON2 pad line. You can
check which signals you need in the CON1 and CON2 chapter.
For more information on UEXT please visit:
http://www.olimex.com/dev/OTHER/UEXT.pdf
*Note the two jumpers PIN29/SOFT_CL – PIN22/LCD_EN/I2C_SCL, and PIN28/SOFT_SDA3 –
PIN21/LCD_HSYNC/I2C_SDA which by default are set to a software I2C. They can be used to set
the whole UEXT to a hardware I2C.
Note that the correct way of connecting modules to the UEXT is:
1. Plug module to host board via UEXT
2. Power host board
If you first power the board and then establish the UEXT it is possible host-board restarting
to occur due to the fact that some modules have large capacitors on the power line.
Page 28 of 47