To buffer address, Size, Clear buffer options – Dataman 48XP User Manual
Page 18: Disable, Blank state (default), 0x00, 0xff

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To Buffer Address
Starting address of the buffer to load the file into. If the data
is to be copied into a specific area of the buffer, enter the
starting address here.
Size
This box contains the buffer size. By default, it is the same
size as the device selected on the DATAMAN-48XP main
screen. If you want to download a file into the memory that
is bigger than the active device, enter the size here (or in
Options | Operation Options).
Clear Buffer Options
Four options are available while loading data into the buffer.
The default option is to clear the buffer to its blank state
prior to loading data.
Disable
This option leaves the original buffer data unchanged, but
then overwrites it with the contents of the newly loaded
file.
Blank state (default)
This option clears the buffer to the devices blank state,
(using command 00 or FF, depending on device selection),
then overwrites the buffer during file loading.
0x00
First clears the buffer of its contents using command 00,
then overwrites the buffer with the new file contents
0xFF
First clears the buffer of its contents using command FF,
then over-writes the buffer with the new file contents.