
MC68336/376
REGISTER SUMMARY
MOTOROLA
USER’S MANUAL
Rev. 15 Oct 2000
D-34
subqueue.
1 = After suspension, begin execution with the aborted CCW in queue 2.
BQ2[5:0] — Beginning of Queue 2
The BQ2 field indicates the location in the CCW table where queue 2 begins. The BQ2
field also indicates the end of queue 1 and thus creates an end-of-queue condition for
queue 1.
D.5.7 QADC Status Register
CF1 — Queue 1 Completion Flag
CF1 indicates that a queue 1 scan has been completed. CF1 is set by the QADC when
the conversion is complete for the last CCW in queue 1, and the result is stored in the
result table.
0 = Queue 1 scan is not complete.
1 = Queue 1 scan is complete.
PF1 — Queue 1 Pause Flag
PF1 indicates that a queue 1 scan has reached a pause. PF1 is set by the QADC when
the current queue 1 CCW has the pause bit set, the selected input channel has been
converted, and the result has been stored in the result table.
0 = Queue 1 has not reached a pause.
1 = Queue 1 has reached a pause.
CF2 — Queue 2 Completion Flag
CF2 indicates that a queue 2 scan has been completed. CF2 is set by the QADC when
the conversion is complete for the last CCW in queue 2, and the result is stored in the
result table.
0 = Queue 2 scan is not complete.
1 = Queue 2 scan is complete.
PF2 — Queue 2 Pause Flag
PF2 indicates that a queue 2 scan has reached a pause. PF2 is set by the QADC when
the current queue 2 CCW has the pause bit set, the selected input channel has been
converted, and the result has been stored in the result table.
0 = Queue 2 has not reached a pause.
1 = Queue 2 has reached a pause.
TOR1 — Queue 1 Trigger Overrun
TOR1 indicates that an unexpected queue 1 trigger event has occurred. TOR1 can be
set only while queue 1 is active.
QASR — Status Register
$YFFF210
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CF1
PF1
CF2
PF2
TOR1
TOR2
QS[3:0]
CWP[5:0]
RE-
SET:
0