MEVB QUICK START GUIDE
M68MPB334UM/D
3-3
Table 3-1. MPFB Quick Start Jumper Header Configuration (continued)
Jumper
Header
Type
Description
W18
1 2 3
Install a jumper on pins 1 and 2 for unrestricted writes to the memory devices
in the pseudo ROM sockets (U2 & U4).
W19
1 2 3
Install a jumper on pins 1 and 2 to ground the A19 signal to the MPFB memory
arrays.
W22
1 2 3
Install a jumper on pins 1 and 2 to select the evaluation MCU (on the MPB) as
an M68300 MCU device.
3.3 MEVB INSTALLATION INSTRUCTIONS
MEVB installation requires a user-supplied power supply and host computer. The
host computer must have a parallel port and must run MS-DOS, as required by
ICD32. The following paragraphs explain MPFB connections. Refer to Chapter 2
for instructions to connect the MPB and MPFB.
3.3.1
Power Supply – MPFB Connection
Use MPFB connector J5 (Figure 3-1) to connect a user-supplied power supply to
the MEVB. Contact 1 is ground; black lever. Contact 2 is VDD (+5 volts); red
lever. Use 20 or 22 AWG wire for power connections. For each wire, trim back
the insulation 1/4 in. (.635 cm), lift the appropriate lever of J5 to release tension
on the contacts, then insert the bare wire into J5 and close the lever. The MEVB
requires a +5Vdc @ 1.0 amp power supply for operation. A 1.5 amp fuse is
installed on the MPFB +5Vdc power supply input line.
Содержание M68MPB334
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