To Enable Or Disable The Target Berr Signal - HP 68302 User Manual

When the check box is deselected, the /BR signal driven from the target
system will be ignored by the emulator. The emulator will not drive an active
level on /BG; the address, data, and control signals will not be placed in a
tristate condition.
Internal 68302 DMA can happen regardless of the answer to this question.
The /BGACK signal will always be active on internal DMA operations.

To enable or disable the target BERR signal

1 Choose the Settings→Emulator Config→Hardware... (ALT, S, E, H)
command.
Select or deselect the Enable target BERR signal check box.
2
Choose the OK button to exit the Emulator Config dialog box.
3
When the check box is selected, the target system /BERR and the emulator
/BERR signals are tied together.
When the check box is deselected, the target system /BERR and the emulator
/BERR signals are disconnected. The 68302 can still generate /BERR
however the target system will not see this signal. The emulator will also not
respond to target system bus errors.
Chapter 3: Configuring the Emulator
Setting the Hardware Options
71