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©2017 Integrated Device Technology, Inc.
June 5, 2017
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8T49N24x EEPROM Programming Guide Application Note
Recovery from Incorrect Write
In case something goes wrong and the EEPROM is written incorrectly, the device may not boot correctly, and Timing Commander may be
unable to connect to the device. If this occurs, the following steps should be used (See the User's Guide for the board revision that is
being used):
1. Power down the evaluation board.
2. Remove the EEPROM from the socket.
3. Power up the Evaluation Board (the device will load the -998 configuration from OTP).
4. Connect to the board and use “WriteAll” to ensure the I2C communication is working correctly (steps 1–5 of
EEPROM Using Timing Commander and the Evaluation Board
5. Without powering down, place the EEPROM back in the socket.
6. Write to the EEPROM (steps 7–11 of
Method 1: Direct Write to EEPROM Using Timing Commander and the Evaluation Board
7. The EEPROM should now have the correct settings programmed.
Revision History
Revision Date
Description of Change
June 5, 2017
▪
Added support for the 8T49N240i device
▪
Converted the document to the latest template
August 7, 2015
Initial release.
