EV20F92A Serial Memory SPI Evaluation Kit User’s Guide
2022 Microchip Technology Inc. and its subsidiaries
DS20006685A-page 31
3.13 SECURITY REGISTER
The Security register consists of two regions (size based on the selected supported
device) with a factory-programmed unique serial number in the lower 16 bytes (address
00h to 0Fh) in the first section and a user-programmable lockable identification page in
the second section.
FIGURE 3-19:
SECURITY REGISTER
3.13.1
Refresh
The Refresh feature allows the user to read the entire current Security register contents
from the installed device. The data shown in the current memory array will be overwrit-
ten with the data read from the device.
3.13.2
Read
The Read feature allows the user to specify the starting
Address
(in hexadecimal) and
number of bytes (
Read Count
) read from the Security register by pressing the
Read
button.
Note:
The Security Register tab will only be shown if the feature is supported on
the installed device.
Security Register tab
