User`s manual

User’s Manual 73
APPENDIX E. PROGRAMMING CABLE
Appendix E provides additional theoretical information for the Rabbit
3000
™
microprocessor when using the DIAG and PROG connectors on
the programming cable. The
PROG connector is used only when the
programming cable is attached to the programming connector (header
J3) while a new application is being developed. Otherwise, the
DIAG
connector on the programming cable allows the programming cable to
be used as an RS-232 to CMOS level converter for serial communica-
tion, which is appropriate for monitoring or debugging a RabbitCore
system while it is running.