HC05L1EM USER’S MANUAL
MOTOROLA
1-3
1
1.2
EM LAYOUT
Figure 1-1 shows the layout of the L1EM. Jumper header P4 controls the
path of a target reset. Jumper header P5 allows you select the frequency
of the L1EM on-board clock source. Jumper header P6 lets you select
the clock-signal source.
Connectors P7 and P8, for a 64-pin QFP or 56-pin S-DIP cable assem-
bly, (purchased separately from the L1EM.) is the interface to a target
system. If you install the L1EM in the MMDS05 station module, the tar-
get cable passes through the slit in the station module enclosure. Con-
nector P1 connects to a logic analyzer. (Connector P1 has more
significance for an EVS system, as an MMDS05 system includes a bus
analyzer.) Expansion header connectors P2 and P3 connect together the
EM and the control board (for an MMDS05) or the EM and the platform
board (for an EVS).
1.3
CONNECTOR PIN ASSIGNMENTS (P4 AND P5)
Figure 1-2 and 1-3 show the pin assignments for connectors P7 and P8.
For signal descriptions, consult the technical data book for the specific
MCU.
As connector P1 has more importance to an HC05EVS than to an
MMDS05, pin assignments for connector P1 are in Chapter 3.
To configure your L1EM for use as part of an MMDS05, follow the
instructions of Chapter 2. To configure your L1EM as part of an
HC05EVS, follow the instructions of Chapter 3.
