Article Details

ID: 5650
Case Type: faq
Category: Device Programming
Related To:
Family: MACHXO3

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1. Where can I find detail informations for the Flash Protect Key-Related sysConfig Commands (other than TN1313)?2. What is the difference between PWD_EN and PWD_ALL?3. How to check if device is unlocked?

1. Please refer to MachXO3 Programming and Configuration Usage Guide document for more information on the commands.
2. PWD_EN protects the UFM from unauthorized access from any configuration interface while, PWD_ALL protects the UFM, CFG and SRAM configuration from unauthorized access.
3. You can check the Status Register of the following:
Bit 5: PWD Protect This status bit will be set to 1' if the configuration logic is Password Protected.
Bit 16: PWD Enable This status bit will be set to 1' to indicate that the password protection is enabled.
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