This isn't any big deal, just curious.

Since I don't have a programmer that reads the ID codes, I wrote
a short routine to read them. The results were;

0x3FFFFE: 0x25 (DEVID1)
0x3FFFFF: 0x04 (DEVID2)

The first (0x25) I interpret to read as: 18F452 Rev. 5 but what does =
DEVID2=20
indicate? The data sheet only says (that I could find) that it =
identifies the=20
part number in DEVID1.

The part is stamped;
    18F452-I/P
    0239GG9

Does the 0x04 by any chance indicate the I/P part of the part number?

Assuming my method of reading the device ID codes and interpretation
of them is correct, I was a little surprised at the rev number. Since =
the=20
B5 errata sheet only fairly recently appeared on the uChip website I =
would have=20
thought that they would only in the last couple of months be shipping =
rev 5
parts, yet the date code on the part indicates week 39 of 2002. On the=20
other hand, I guess they are under no obligation to keep the information =
on
their web site in sync with production.

Thanks for any response,

Mike Jones

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu