MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 459

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

MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA
One or both queues may be in the idle state. When a queue is idle,
CCWs are not being executed for that queue, the queue is not in the
pause state, and no trigger is pending.
The idle state occurs when a queue is disabled, when a queue is in a
reserved mode, or when a queue is in a valid queue operating mode
awaiting a trigger event to initiate queue execution.
A queue is in the active state when a valid queue operating mode is
selected, when the selected trigger event has occurred, or when the
QADC is performing a conversion specified by a CCW from that
queue.
Only one queue can be active at a time. One or both queues can be
in the paused state. A queue is paused when the previous CCW
executed from that queue had the pause bit set. The QADC does not
execute any CCWs from the paused queue until a trigger event
occurs. Consequently, the QADC can service queue 2 while queue 1
is paused.
Only queue 2 can be in the suspended state. When a trigger event
occurs on queue 1 while queue 2 is executing, the current queue 2
conversion is aborted. The queue 2 status is reported as suspended.
Queue 2 transitions back to the active state when queue 1 becomes
idle or paused.
Freescale Semiconductor, Inc.
For More Information On This Product,
Queued Analog-to-Digital Converter (QADC)
Go to: www.freescale.com
QS[9:6]
1000
1001
1010
1011
1100
1101
0111
1110
1111
Table 19-7. Queue Status (Continued)
Queue 1 paused, queue 2 trigger pending
Queue 1 active, queue 2 idle
Queue 1 active, queue 2 paused
Queue 1 active, queue 2 suspended
Queue 1 active, queue 2 trigger pending
Reserved
Reserved
Reserved
Reserved
Queue 1/Queue 2 States
Queued Analog-to-Digital Converter (QADC)
Register Descriptions
Advance Information
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