Texas Instruments AM243 Series, User Manual

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4.6.2 Board ID EEPROM
The AM243x LaunchPad has a 1 Mbit I2C EEPROM for board ID information. The board ID memory is
configured to respond to the I2C address 0X50 by connecting the address pins (A0, A1) to ground and
programmed with the header description. This EEPROM (AT24CM01-XHD-T from Microchip) is interfaced to the
I2C0 port of the SoC. When the WP pin is connected directly to VCC then all write operations to the protected
memory are inhibited. The mounted resistor is shown inside of the red box in
Figure 4-8 . For normal operation,
the WP pin can be left floating by isolating the resistor shown in the red box (R89).
Figure 4-8. Board ID EEPROM
Table 4-12. Board ID Memory Header Information
Header Field Name # Bytes Offset Field Value Field Type Description
EE3355AA MAGIC 4 0000 0xEE3355AA HEX Magic Number
TYPE 1 0004 0x01 HEX Fixed length and variable
position board ID header
2 0005 F7 HEX Size of payload bytes following
this field including end_list byte
BRD_INFO TYPE 1 0007 0x10 HEX Board Info header identifier
Length 2 0008 2E HEX offset to next header
Board_Name 16 000A AM243-LPEVM CHAR
Design_Rev 2 001A E2 CHAR
PROC_Nbr 4 001C 109 CHAR PROC number from central
EVM
Variant 2 0020 01 CHAR
PCB_Rev 2 0022 E2 CHAR
SCHBOM_Rev 2 0024 00 CHAR Used for schematic revision
extension - A, B, C etc.
Schematic/BoM revision will be
DesSCHBOM_Rev
SWR_Rev 2 0026 01 CHAR 1 is first software release
VendorID 2 0028 01 CHAR 1 is Mistral
Build_Week 2 002A 20 CHAR Filled in by Mistral
Build_Year 2 002C 21 CHAR 2021
Hardware Description www.ti.com
30 AM243x LaunchPad™ Development Kit User's Guide SPRUJ12B – AUGUST 2021 – REVISED OCTOBER 2022
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