Motorola MPC533 Reference Manual page 591

Trig1
(gate)
EOC
0
QS
LAST
CCW0
CWP
LAST
CWPQ1
LAST
Q1 RES
SSE
Software must set SSE
CF1
PF1
Software must clear PF1
Figure 14-44. Gated Mode, Single-Scan Timing
Example 3 below shows the timing for conversions in gated continuous-scan mode with the
same assumptions in the amended definition for the PF bit in this mode to reflect the
condition that a gate closing occurred before the queue completed is a proposal under
consideration at this time as example 2.
At the end of Q1,the completion flag CF1 sets and the queue
restarts. Also, note that if the queue starts a second time and
completes, the trigger overrun flag TOR1 sets.
MOTOROLAChapter 14. Queued Analog-to-Digital Converter Enhanced Mode Operation
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
8
0
CCW1
CCW0
CCW1
R0
R1
NOTE
Trigger and Queue Interaction Examples
8
CCW1 CCW2
CCW0
CCW0 CCW1
R1
R0
0
CCW3
CCW2 CCW3
R2 R3
14-67