EV20F92A Serial Memory SPI Evaluation Kit
User’s Guide
DS20006685A-page 30
2022 Microchip Technology Inc. and its subsidiaries
3.12 ENHANCED WRITE PROTECTION
The Enhanced Write Protection tab gives the user access to the various Memory Par-
tition Registers (MPRs) for the connected Serial EEPROM. The tab allows the user to
select each partition behavior and end point address.
FIGURE 3-18:
ENHANCED WRITE PROTECTION
3.12.1
Read
The Read feature allows the user to read the current contents of each MPR. A read will
update the values shown.
3.12.2
Freeze
The Freeze feature allows the user to freeze the current contents of the MPRs.
3.12.3
Enable/Disable PPAB
The Enable PPAB feature allows the user to protect (Enable) or unprotect (Disable) the
Partition Endpoint Addresses as currently specified in the Endpoint Addresses.
Enabling PPAB protects the Endpoint Addresses from being unintentionally altered.
3.12.4
Write
The Write feature allows the user to write the new MPR values to the installed device.
Note:
The Enhanced Write Protection tab will only be shown if the Memory Parti-
tion Registers feature is supported on the installed device.
Enhanced Write Protection tab
Read button
Freeze button
Enable/Disable PPAB button
Write button
Note:
This is a permanent operation and once completed, it cannot be undone.
