Enhanced Write Protection - Microchip Technology EV20F92A User Manual

EV20F92A Serial Memory SPI Evaluation Kit User's Guide
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.
Note:
FIGURE 3-18:
Read button
3.12.1
The Read feature allows the user to read the current contents of each MPR. A read will
update the values shown.
3.12.2
The Freeze feature allows the user to freeze the current contents of the MPRs.
Note:
3.12.3
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
The Write feature allows the user to write the new MPR values to the installed device.
DS20006685A-page 30
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
Freeze button
Enable/Disable PPAB button
Read
Freeze
This is a permanent operation and once completed, it cannot be undone.
Enable/Disable PPAB
Write
Enhanced Write Protection tab
Write button
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