Hi all,

some time ago, I posted, that there is a difference between manual/simulator
and the real-world 17C44:

  The table latch used for Table-Reads and Table-Writes are different,
  that is, you cannot table-read a double-byte value, write a new
  value into one of the table latch halves and table-write them back
  into RAM / EPROM. The second - unaffected - byte will be filled with
  an arbitrary value - resulting from an earlier action.
  The simulator (and the manual too) allows this simplified read-modify-
  write cycle, but the 17C44 doesn't.

Does anybody know, if the new released 17C5xx has the same "feature"?

(It's a pity, that Microchip has never responded - neither to my
posting nor to a direct email...)

regards,

Wolfram


+-----------------------------------------------------+
| Wolfram Liebchen                                    |
| Forschungsinstitut fŸr Optik, TŸbingen, Deutschland |
| mailto:liebchen@ffo.fgan.de                         |
+-----------------------------------------------------+