Secure Eeprom; Eeprom Type - Enclustra Mars XU3 User Manual

A 1.2 V LDO is used to generate the battery voltage for the built-in RTC (supplied to VCC_PSBATT pin), based
on the VCC_BAT voltage mapped to the module connector. This pin can be connected directly to a 3 V
battery on the base board. Please refer to the Enclustra Module Pin Connection Guidelines [10] for details.
2.24

Secure EEPROM

The secure EEPROM is used to store the module type and serial number, as well as the Ethernet MAC address
and other information. It is connected to the I2C bus.
The secure EEPROM must not be used to store user data. Please refer to Section 4.4 for details on the
content of the EEPROM.
2.24.1

EEPROM Type

Table 28 describes the equipped EEPROM device type on the Mars XU3 SoC module.
Type
ATSHA204A-MAHDA-T (default)
DS28CN01 (assembly option)
Table 28: EEPROM Type
An example demonstrating how to read data from the EEPROM is included in the Mars XU3 SoC module
reference design [2].
D-0000-432-001
Manufacturer
Atmel
Maxim
35 / 52 Version 04, 25.07.2019