We are testing the ADXL372 for a customer who would like to understand better two elements of the ADXL372:
- The ADXL372 makes passing reference to user-programmable non-volatile memory in the device. Specifically, mention of user-programmable NVM is contained in the Status Register (address 0x04). I could not find reference elsewhere in the datasheet to user NVM. What is the user NVM and what purpose does it serve? How does one program it?
- The device must contain NVM to store its calibration constants - ADI must program this NVM during the production phase. What technology is this memory? Meaning: Flash, EEPROM, fuse-based (zener diode or some other fuse-based method), etc. If fuse-based, what is the fuse mechanism (zener diode, poly resistor, etc.).
Thanks and regards,