The External Memory Read command is used to read the contents of an external memory. One byte of data is returned for each address read. The format of this command is:
X {8-digit hex value}After execution of the External Memory read command, the controller returns data in the hexadecimal format as shown:
I> X 00000000
94
I>UltraScale and UltraScale+ devices share the same format for the command and the returned data.