MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 428

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MPC555
USER’S MANUAL
BQ2
00
63
The queue operating mode selected for queue 1 determines what type of trigger event
causes the execution of each of the sub-queues within queue 1. Similarly, the queue
operating mode for queue 2 determines the type of trigger event required to execute
each of the sub-queues within queue 2.
The choice of single-scan or continuous-scan applies to the full queue, and is not ap-
plied to each sub-queue. Once a sub-queue is initiated, each CCW is executed se-
quentially until the last CCW in the sub-queue is executed and the pause state is
entered. Execution can only continue with the next CCW, which is the beginning of the
next sub-queue. A sub-queue cannot be executed a second time before the overall
queue execution has been completed.
Trigger events which occur during the execution of a sub-queue are ignored, except
that the trigger overrun flag is set. When continuous-scan mode is selected, a trigger
event occurring after the completion of the last sub-queue (after the queue completion
flag is set), causes execution to continue with the first sub-queue, starting with the first
CCW in the queue.
P
P
P
CONVERSION COMMAND WORD
0
0
0
1
0
0
0
1
0
0
0
0
1
0
1
0
1
0
1
0
/
BEGIN QUEUE 1
END OF QUEUE 1
END OF QUEUE 2
BEGIN QUEUE 2
MPC556 QUEUED ANALOG-TO-DIGITAL CONVERTER MODULE-64
(CCW) TABLE
PAUSE
PAUSE
PAUSE
PAUSE
PAUSE
PAUSE
Figure 13-7 QADC64 Queue Operation with Pause
CHANNEL SELECT,
SAMPLE, HOLD,
CONVERSION
AND
Rev. 15 October 2000
A/D
RESULT WORD TABLE
MOTOROLA
QADC64 CQP
13-16
00
63