Data Block Read
This command reads Count bytes from the Flash memory starting at the address given by the Flash address word which can be calculated as follows:
Flash Address = ((FlashAddressHigh shifted left 8) OR 0xFF) AND FlashAddressLow
For example, to read a Flash address of 0xABCD the values to be sent in the command would be FlashAddressHigh = 0xAB and FlashAddressLow = 0xCD.
A Count value of 128 bytes should be used.