Motorola MPC533 Reference Manual page 504

Trigger and Queue Interaction Examples
IDLE
Q1
IDLE
Q2
QS 0000
T2
Q2:
C1
C1
IDLE
Q1
IDLE
Q2
ACTIVE
QS
0000 0010
Situations S10 and S11 (Figure 13-34 and Figure 13-35) 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 permits the software to know that queue 1 is taking up so
much QADC64E time that queue 2 trigger events are being lost.
13-60
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
T1
Q1:
C1 C2
T2
PF1
Q2:
PAUSE
ACTIVE
1000 0100
Figure 13-32. CCW Priority Situation 8
T1
Q1: C1 C2
PF1
C2
C2
PF2
ACTIVE
PAUSE
PAUSE
SUSPEND ACT
1010 0110 0101
Figure 13-33. CCW Priority Situation 9
MPC533 Reference Manual
T1
C3 C4
CF1
C1 C2
C2
ACTIVE ACTIVE
ACTIVE SUSPEND
0110 1010
T1
C3 C4
T2 CF1
C4
C3
ACTIVE
SUSPEND
ACTIVE
0110 1010
RESUME=1
C3 C4
CF2
IDLE
IDLE
ACTIVE
0010 0000
QADC S8
C4
RESUME=1
CF2
IDLE
IDLE
ACT
0010 0000
MOTOROLA
QADC S9