M68HC05P3EM/D
3-11
MOTOROLA
2.1.2 Reset Select Header (J3)
Jumper header J3 controls the path of a target reset. The diagram below shows the factory
configuration: the fabricated jumper between pins 1 and 2 enables your software to control
resets. This is the only correct J3 configuration for a P3EM that is part of an MMDS05.
EVS
TRGT
J3
1
(2)
(3)
FABRICATED
JUMPER
NOTE
The J3 pins 2-and-3 configuration is not correct for a P3EM that is part of an
MMDS05 system. Such a configuration would interfere with correct operation
of the RESETIN and RESETOUT commands.
2.1.3 Resident MCU Select Header (J4)
Jumper header J4 selects the correct EM operation for each of the possible resident MCUs.
The diagram below shows the factory configuration: the fabricated jumper between pins 2 and
3 selects the correct LIR operation for an MC68HC705P3. Reposition the jumper between
pins 1 and 2 when an MC68HC05P3 MCU adaptor assembly is installed in socket U2.
05P3
705P3
J4
1
(2)
(3)
FABRICATED
JUMPER
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
nc.
..
