MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 485

• Manufacturer Part Number: MMC2114
• Description: M CORE Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA
Q1:
Q2:
QS:
IDLE
0000
IDLE
Situation S5
events are detected while queue 1 is busy, the trigger overrun error bit
is set, but queue 1 execution is not disturbed. Situation S5 also shows
that the effect of queue 2 trigger events during queue 1 execution is the
same when the pause feature is used for either queue.
The remaining situations, S6 through S11, show the impact of a queue 1
trigger event occurring during queue 2 execution. Because queue 1 has
higher priority, the conversion taking place in queue 2 is aborted so that
there is no variable latency time in responding to queue 1 trigger events.
In situation 6
CCW in queue 2 is aborted just before the conversion is complete, so
that queue 1 execution can begin. Queue 2 is considered suspended.
After queue 1 is finished, queue 2 starts over with the first CCW, when
the RESUME control bit is set to 0. Situation S7
that when pause operation is not used with queue 2, queue 2
suspension works the same way.
Freescale Semiconductor, Inc.
Q1:
Figure 19-27. CCW Priority Situation 5
For More Information On This Product,
Q2:
Queued Analog-to-Digital Converter (QADC)
T1
1000
C1
ACTIVE
T2
TOR2
TRIG
1011
C2
T2
Go to: www.freescale.com
(Figure
(Figure
PF1
C1
ACTIVE
0110
PAUSE
19-27) shows that when multiple queue 2 trigger
C2
19-28), the conversion initiated by the second
PF2
0101
PAUSE
T1
1001
C3
ACTIVE
ACTIVE
T2
Queued Analog-to-Digital Converter (QADC)
TOR2
1011
TRIG
C4
T2
CF1
C3
ACTIVE
0010
C4
CF2
(Figure
IDLE
Advance Information
IDLE
0000
19-29) shows
Digital Control
485