5.5 Write Operation (WRITE)
The WRITE instruction contains the 8 bits or 16 bits of data to be written
into the specified memory location. The self-timed programming cycle, tWP,
starts after the last bit of data is received at DI pin. The DO pin outputs the Ready/Busy
status of the part if CS is brought high after being kept low for a minimum of
tCS. A logic ‘0’ at DO indicates that programming is still
in progress. A logic ‘1’ indicates that the memory location at the
specified address has been written with the data pattern contained in the instruction and
the part is ready for further instructions. A Ready/Busy status cannot be obtained if CS is
brought high after the end of the self-timed programming cycle, tWP.