JAJSHI3C March 2019 – October 2019 TPS23881
COMMAND = 41h with 1 Data Byte, Read Only
|LEGEND: R/W = Read/Write; R = Read only; -n = value after reset|
|7–0||FRV||R||Firmware Revision number|
After a RESET or POR fault this value will default to 0000, 0000b, but upon a “valid” SRAM load, this value will reflect the corresponding SRAM version of firmware (0x01h – 0xFEh).
If the value of this register = 0xFFh, the device is running in “safe mode”, and the SRAM needs to be reprogrammed to resume normal operation.