M68HC05E24/D2
3-4
MOTOROLA
3.1.4 Platform Board Select Header (J5)
The factory configuration of header J5 is shown below. The fabricated jumper must be
installed between pins 1 and 2 for EVS operation.
1
2
3
FABRICATED
JUMPER
J5
EM
MMDS
NOTE: The only valid position of the J5 fabricated jumper is between pins 1 and 2 when using
the E24EM as part of an EVS system.
3.2 THE EMULATED MCU
The factory ships the E24EM with an MC68HC705E24 resident MCU. This MCU is suitable
for emulation of both the MC68HC705E24 and the MC68HC05E16.
3.2.2 MC68HC705E24 Emulation
Operation of at frequencies above 2.2MHz ECLK is not possible.
Ports A and B are rebuild by a PRU. The drive capability of this PRU is greater than that of the
MCU.
COP operation is not supported.
For more information about the MC68HC705E24 features, see the corresponding technical
data books.
3.2.3 MC68HC05E16 Emulation
Limitations are as per 3.2.2.
For more information about the MC68HC05E16 features, see the corresponding technical data
books.
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
nc.
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