Nonvolatile Memory

The WLR089U0 provides the user with a readable Nonvolatile Memory (NVM) space called user row, programmed in the factory. The base address for the application is 0x804008. The following table shows the implemented data structure.

Table 1. NVM (User Row) Data
Address Offset	Field Name	Field Description	Length
`BaseAddr. +` `0x00`	MIB_REVISION	Data structure revision. `0x1501`	2 bytes
+ `0x02`	MAC_IEEE_ADDRESS	Module specific IEEE MAC Address	8 bytes
+ `0x0A`	BOARD_SERIAL	Module specific serial number	10 bytes
+ `0x14`	PART_NO	Product specific part number	8 bytes
+ `0x1C`	PCBA_REV	Product PCB/assembly revision	1 byte
+ `0x1D`	XTAL_TRIM	Reference crystal calibration value	1 byte
+ `0x1E`	CRC16	Checksum for this data structure	2 bytes

BOARD_SERIAL, PART_NO and XTAL_TRIM for this WLR089U0 module is programmed with 0xFF. As the module uses TCXO on board, XTAL_TRIM is not applicable. The MAC_IEEE_ADDRESS is stored little-endian with the first byte stored at the lowest address.