HARDWARE PREPARATION AND INSTALLATION
2-10
M68MPB16R3UM/D
2.2.7
MCU ID Code Select Header (W6 & W7)
Jumper headers W6 and W7 select the MCU ID code; either the MC68HC16R1,
MC68HC916R1, MC68HC16R3, or MC68HC916R3 MCUs. The drawing below
shows the factory configuration: fabricated jumper on W6 pins 1 and 2 and W7
pins 1 and 2. Use this configuration when an MC68HC916R3 MCU is installed
on the MPB. To use the MPB with a different MCU installed, configure the
fabricated jumpers per the table below.
W6
W7
1
2
3
1
2
3
MCU
W6
W7
MC68HC16R1
2 – 3
2 – 3
MC68HC916R1
1 – 2
2 – 3
MC68HC16R3
2 – 3
1 – 2
MC68HC916R3
1 – 2
1 – 2
2.2.8
VSSA Insertion Point (E1)
Insertion point E1 is a plate through hole that lets you connect an external ground
to the MPB VSSA pin (refer to paragraph 2.2.2). Insert an external ground wire in
E1 and solder it into the plate through hole.
NOTE
Insertion point E1 is not populated by the factory.