Ccw Priority Situation 8; Ccw Priority Situation 9 - Motorola ColdFire MCF5281 User Manual

IDLE
Q1:
IDLE
Q2:
QS: 0000
T2
Q2:
C1
C1
IDLE
Q1:
IDLE
ACTIVE
Q2:
QS:
0000 0010
Situations S10 and S11 (Figure 27-32 and Figure 27-33) show that when an additional
trigger event is detected for queue 2 while the queue is suspended, the trigger overrun error
bit is set, the same as if queue 2 were being executed when a new trigger event occurs.
Trigger overrun on queue 2 thus allows the user to know that queue 1 is taking up so much
QADC time that queue 2 trigger events are being lost.
MOTOROLA
T1
Q1:
C1 C2
T2
PF1
Q2:
ACTIVE
1000 0100
Figure 27-30. CCW Priority Situation 8
T1
Q1: C1 C2
PF1
C2
C2
PF2
ACTIVE
SUSPEND ACT PAUSE
1010 0110 0101
Figure 27-31. CCW Priority Situation 9
Chapter 27. Queued Analog-to-Digital Converter (QADC)
T1
C3 C4
CF1
C1
C2
PAUSE ACTIVE ACTIVE
ACTIVE SUSPEND
0110 1010
T1
C3 C4
T2
C4
C3
PAUSE ACTIVE
ACTIVE SUSPEND
0110 1010
Digital Control Subsystem
C2 C3 C4 RESUME=1
CF2
IDLE
ACTIVE IDLE
0010 0000
CF1
C4
RESUME=1
CF2
IDLE
IDLE
ACT
0010 0000
27-45