EV20F92A Serial Memory SPI Evaluation Kit User’s Guide
2022 Microchip Technology Inc. and its subsidiaries
DS20006685A-page 27
FIGURE 3-14:
READ OPERATION
3.10.5
Write
The Write feature allows the user to write the entire Serial EEPROM memory array, a
specific word address or a range of word addresses. When the
Write
button is pressed,
a pop-up window appears, allowing the user to enter details related to the write opera-
tion to be performed.
The user inputs the data that is to be written in the “Data To Write” field (in hexadecimal)
or the user can fill the “Data To Write” field with a generated pattern by pressing the
Generate Pattern
button as shown in
.
FIGURE 3-15:
PATTERN GENERATION
Once data has been input, the user then selects the starting word address using the
“Address (Hex)” field that the write operation will start at (in hexadecimal).
The GUI limits write operations to the physical device boundary of that region.The write
operation will be aborted if the address boundary of that particular memory region is
exceeded. Once all the input data has been input, press the
Write
button to start the
write operation. A status message will appear to notify the user that the write operation
is complete.
Once the write operation is complete, the user can close the window by pressing the
Close
button or continue with another write operation. Once the
Close
button is
pressed, a progress bar for the Refresh feature is displayed and the entire GUI memory
array and Security register are read and the GUI buffer is updated with the new data.
Note:
Due to the construction of the Serial EEPROM devices, the write operation
is limited to the page size or boundary of the installed device. If the “Data”
field exceeds the page boundary of the installed device, the GUI will
automatically parse the data into the correct page size and perform multiple
write operations until the entire “Data” field has been written to the Serial
EEPROM.
Close
button
Read
button
