Datasheet ADIS16488A (Analog Devices) - 3

Silicon Anomaly ADIS16488A Table 11. Flash Memory Corruption From Power Loss During Manual Flash Updates [er011] Background
Setting Register GLOB_CMD, Bit 3 equal to 1 causes an update of the flash memory, which takes 375 ms to execute.
Issue
On units that have firmware Revision 1.09 (or earlier), power loss during manual flash execution has a 1 in 1000 chance of causing corruption in the flash memory, which destroys the device.
Workaround
Read FIRM_REV to determine the firmware revision of a unit. If FIRM_REV < 0x0109, keep VDD > 3.0 V during manual flash update process. Not that this best practice has broader application; however, it does address this specific sensitivity.
Related Issues
None
ANOMALY STATUS Reference Number Description Status Date Code
er001 Error in soft iron correction factors Fixed 1438 er002 User offset addition error Fixed 1438 er003 Temperature compensation error Fixed 1514 er004 Real-time clock (RTC) functional issues Fixed 1514 er005 Erroneous barometer self test result in DIAG_STS Fixed 1514 er006 Barometer new data bit continues updating after failure Fixed 1514 er007 Sleep mode recovery causes barometer failure Fixed 1514 er008 Writing to Register FNCTIO_CTRL causes barometer failure Fixed 1514 er009 Writing to Register GLOB_CMD, Bit 1 causes barometer failure Fixed 1514 er010 Daylight savings time error in real-time clock Fixed 1514 er011 Flash memory corruption from power loss during manual flash updates Fixed 1526
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Rev. 0 | Page 3 of 3 Document Outline PERFORMANCE ISSUES ANOMALY STATUS