Limitations, Restrictions; Access To Internal Ram; Trace Internal Ram; Dma Support - HP 7700 Series User Manual

Limitations,
Restrictions
Access to Internal
RAM

Trace Internal RAM

Note

DMA Support

Watch Dog Timer in
Background
Step Command with
Foreground Monitor
Step Command and
Interrupts
5-8 Using the Emulator
Modifying internal RAM or SFR suspends user program execution.
Read data from the internal RAM or SFR is not traced correctly by the
emulation analyzer.
Write data is also not traced correctly in the following case:
The emulator is used with the M37795 emulation pod.
And:
The processor is operating in the memory expansion or
microprocessor mode with 8 bit external bus.
Direct memory access to emulation memory is not allowed.
Watch dog timer suspends count up while the emulator is running in
background monitor.
Step command is not available when the emulator is used with
foreground monitor.
When an interrupt occurs while the emulator is ruuning in monitor, the
emulator fails to do the first step operation. The emulator will display
the mnemonic of the instruction which should be stepped, but the
instruction is not actually executed. The second step operation will
step the first instruction of the interrupt routine.