Ref: 99980137
Title: U1MMON PROM Revision 03F
Date: 4/27/87

Copyright 3Com Corporation, 1991.  All rights reserved.

Enclosed is a set of U1MMON Revision 03F PROMs. This set consists
of one Revision 03F PROM from bit 0 to bit 7 and one Revision 03F
PROM from bit 8 to bit F.

.h1;Installation

To install the Revision 03F PROMs on the IVECS board, follow
these steps:

1.  If the rows of pins are too far apart to fit into the
sockets, press them closer together by pushing one row of pins
against a flat surface.

2.  On the IVECS board, install the PROM marked 0-7 into the
socket market 0-7 and install the PROM marked 8-F into the socket
marked 8-F. Be sure that the notch in each PROM is oriented in
the same direction as the corresponding notch in the currently
installed set of PROMs.

.h1;Bugs Fixed

The following problems, which were present in U1MMON PROM
Revision 02C or earlier, have been corrected in U1MMON PROM
Revision 03F:

1.  The software reboot now works properly without connecting a
terminal to the IVECS' monitor port.

2.  The IVECS system clock is now accurate.

3.  U1MMON PROM Revision 03F has better diagnostics.  The memory
dump obtained after an IVECS crash now includes contents of the
registers and data at the time of the crash.

.h1;Compatibility

U1MMON PROM Revision 03F operates with IVECS and Version 10020 or
later of the IVECS software.

.h1;Miscellaneous

To avoid being invoiced for the new PROM sets, return the old
set to 3Com within 30 days.

If you have any questions, please contact an authorized 3Com
service representative for assistance.
