HP 16600A Series User Manual page 154

4 Select the clock rate.
5 Click Apply, then click Close.
If a target system's processor clock rate is less than 8 MHz following
powerup, the default clock rate must be set to 131 kHz.
This can occur when the target system has the processor running off of
an external clock source that is less than 8 MHz or is using the clock
synthesizer with a crystal that is lower in frequency that the standard
crystal.
The actual processor clock rate should then be communicated to the
emulator through the configuration processor clock rate entry. The
emulator will then start communications with the target processor at
the 131 kHz processor clock rate. When the configuration process is
complete, the emulator will change the communication rate to a rate
based on the clock speed (procck).
The emulator will not communicate correctly with target systems that
have a processor clock rate slower than 131 kHz.
Note
The emulator does not automatically match the communication
speed to the actual target speed (SYNCR register). Maintaining
consistency is the responsibility of the user.
To maintain consistency, specify a correct SYNCR register value in
the configuration process and make sure that the target code does
not change the SYNCR register to a value that is slower than what
is specified in the configuration.
The emulator will not run correctly if the actual target
processor clock rate is slower than the rate specified in the
configuration.
Solutions for CPU32
Chapter 6: Connecting and Configuring the Emulation Module
Configuring the Emulation Module
153