Motorola 68HC12BC32 - Manual (Page 14)

14
BDM-IN
The BDM-IN port is a 6 pin header compatible in pinout with the Motorola Background Debug
Mode (BDM) Pod. This allows the connection of a background debugger for software
development, programming and debugging in real-time, since the BDM control logic does not
reside in the CPU.
BGND 1 2 GND
3 4 /RESET
5 6 +5V
See the HC12 Technical Reference Manual for complete
documentation of the BDM.
A Background Debug Module is available from the manufacturer.
The BDM-OUT port is provided on the board for Motorola MC68HC912B32 EVU Board
compatibility. Consult the EVU board documentation for usage information.
EVU Compatibility Jumpers
The EVB-H3 and EVB-H4 jumpers provide backward compatibility with the Flash Options on
the Motorola MC68HC912B32 EVU Board. These can be installed by the user and the
Debug12.s19 file programmed into the Internal Flash EPROM for EVU similar operation of the
development board. Normally this is not necessary due to the Utilities provided in the UTL12
EPROM's.