Triggering
To detect bus contention
To detect bus contention
In this sequencer setup, the trigger occurs only if both devices assert their bus transfer acknowledge lines at the same time.
1Select the timing analyzer Trigger menu.
2Define the Edge1 term to represent assertion of the bus transfer acknowledge line of one device, and Edge2 term to represent assertion of the bus transfer acknowledge line of the other device.
You can rename these to BTACK1 and BTACK2.
3Under Timing Sequence Levels, enter the following sequence specification:
TRIGGER on “BTACK1 ∙ BTACK2” 1 time
Triggering on Bus Contention