M68HC05P3EM/D
3-12
MOTOROLA
2.2 THE EMULATED MCU
Your MMDS05 system uses a specific personality file for the MCU type being emulated. For
example, to emulate an MC68HC05P3 or MC68HC705P3 MCU, the system uses personality
file 00207Vxx.MEM. Table 2-1 lists the personality files that pertain to the P3EM. Note that
personality file names follow the pattern
00ZZZVxx.MEM
, where
ZZZ
is the EM identifier
or MCU name, and
xx
is the version of the file.
Table 2-1. MCUs and Personality Files
EMULATED
MCU
PERSONALITY
FILE
COMMENTS
M68HC05P3
00207V01.MEM
See paragraph 2.2.1
M68HC705P3
00207V01.MEM
See paragraph 2.2.2.
MMDS05 software loads the personality file upon powerup. To replace the default personality
file with a different one, use the LOADMEM command. (For more information about the
LOADMEM command, see the explanation in the MMDS05 operations manual.)
Alternatively, you can insert the line LOADMEM 00ZZZVxx.MEM in the STARTUP.05 script
file. This way, the system automatically loads the specified personality file as part of system
startup. (For more information about the STARTUP.05 script file, see the SCRIPT command
explanation in the MMDS05 operations manual.)
2.2.1 P3 Emulation
To emulate an MC68HC05P3 use the MC68HC705P3 for the resident MCU. The installed
705P3 allows the user to select COP and IRQ mask options under software control. These
selections are mask programmable in the MC68HC05P3. See the online CHIPINFO
(MMDS05only), or the appropriate data book for further information.
To replace the supplied MC68HC705P3 device with an MC68HC05P3 device a Motorola
supplied adaptor is required. Do not attempt to insert an MC68HC05P3 device directly into
socket U2.
2.2.2 705P3 Emulation
The MC68HC705P3 MCU contains additional registers to allow programming of the internal
EPROM and selection of mask options. An M68HC05P3 device does not support these
features.
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
nc.
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