General Emulator Configuration; Micro-Processor Clock Source - HP 7750 Series User Manual

General Emulator
Configuration
Micro-processor
clock source?
The configuration questions described in this section involve general
emulator operation.
This configuration question allows you to select whether the emulator
will be clocked by the internal clock source or by a target system clock
source.
internal Selects the internal clock oscillator as the emulator
clock source. The internal clock is provided from
the emulation pod. In the case of HP 64146-61602
emulation pod, the clock speed is 1/8/16/25 MHz.
When you use an emulation pod with clock faster
than 16 MHz, you need to select the high speed
access mode to run the emulator with no wait state.
If the high speed access mode is not selected, one
wait state is inserted by the emulator.
external Selects the clock input to the emulator probe from
the target system. You must use a clock input
conforming to the specifications for the 7750/51
Series microprocessor. The HP 64147A emulator
runs with no wait state with target system clock up
to 16 MHz. When clock is faster than 16 MHz, you
need to select the high speed access mode to run the
emulator with no wait state. If the high speed access
mode is not selected, one wait state is inserted by
the emulator.
Configuring the Emulator 4-3