Phytec phyCORE-i.MX35, Hardware Manual

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System Memory
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PHYTEC Messtechnik GmbH 2010 L-734e_1
35
7.5 I²C EEPROM (U2)
The phyCORE-i.MX35 is populated with a ST 24W32C
1
non-volatile 32 KByte EEPROM (U2) with an
I²C interface to store configuration data or other general purpose data. This device is accessed
through I²C port 1 on the i.MX35x. The serial clock signal and serial data signal for I²C port 1 are
made available at the phyCORE-connector as X_I2C1_DAT on X1 pin 85C and X_I2C1_CLK on X1
pin 85D.
Three solder jumpers are provided to set the lower address bits: J11, J14, and J15.
Refer to
section 7.5.1 for details on setting these jumpers.
Write protection to the device is accomplished via jumper J1. By default this jumper is closed, allowing
write access to the EEPROM. Removing this jumper will cause the EEPROM to enter write protect
mode, thereby disabling write access to the device.
Refer to section 7.5.2 for further details on setting
this jumper.
1
:
See the manufacturer’s data sheet for interfacing and operation
.