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4.2 Carrier EEPROM Format
The SMART-BEE module includes an I2C serial EEPROM available on the
I2C_PM bus. An On Semiconductor 24C32 or equivalent EEPROM is used
in the Carrier. The device operates at 3.3V. The Module serial EEPROM is
placed at I2C slave addresses A2 A1 A0 set to 1 (I2C slave address 57 hex,
7 bit address format or A0 / A1 hex, 8 bit format) (for I2C EEPROMs,
address bits A6 A5 A4 A3 are set to binary 0101 convention).
The Carrier serial EEPROM is intended to retain carrier parameter
information, including serial number. The carrier serial EEPROM data
structure
conforms
Specification.
If developers have more than one carrier boards all using SMARC T335X as
the core module, it is recommended to have an EEPROM on carrier. The
advantage for that is the module will read the Carrier EEPROM information
and load the specific hardware configurations. It will be secure and easy to
maintain software.
Note:
The EEPROM ID memory layout is now follow the mainline and as follows.
Name
Header
EEPROM Format
Revision
Board Name
Version
Manufacturer
Part Number
Number of Pins
SMART-BEE User's Manual Document Revision v.1.2
to
the
PICMG®
Offset
Size
(bytes)
0
4
0xAA, 0×55, 0×33, 0xEE
4
2
Revision number of the overall format of this
EEPROM in ASCII =A0
6
32
Name of board in ASCII
38
4
Hardware version code for board in ASCII
42
16
ASCII name of the manufacturer
58
16
ASCII Characters for the part number
74
2
Number of pins used by the daughter board
EEEP
Embedded
Contents
EEPROM
61
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