...
These are available in the capture chapter "Serial Shift IO Interface", of the netIC - Design guide and User manual.
...
Therefore, this function has been deactivated for the netIC 52, at product release.
However, since Firmware V2.3.0.0 storing a configuration into the flash has been activated again.
To use this function, beside the appropriate firmware version, a 2nd stage bootloader with V1.6.0.0 needs to be used inside the NIC 52-RE.
V1.6.0.0 is used in production since April 2019.
The steps for storing a fixed configuration to the flash memory, is nearly the same as for NIC 50-RE:
- Write all configuration parameters to the corresponding registers using function code 16.
- Set the CLR_CFG (Register 1999, Bit 6) flag within the command register to clear the configuration parameter in the Flash memory.
- Check the status of the System Flag (Register 999) until the flag FLS_CFG (Bit 7) has been cleared.
- Set the STR_CFG (Register 1999, Bit 7) flag within the command register to store the configuration parameter in the Flash memory.
- Check the status of the System Flag (Register 999) until the flag FLS_CFG (Bit 7) has been set again.
- Set the INIT (Register 1999, Bit 4) flag.
- The netIC now starts with the new configuration parameters.
With netIC 52, for step 2 the CLR_REM_CFG Flag (Register 1999, Bit 12) needs to be set to clear the configuration parameter in the Flash memory.
netIC - Design guide and User manual
...