MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 455

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

MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA
NOTE:
If a set CCW pause bit is encountered in either externally gated mode,
the pause flag will not set, and execution continues without pausing. This
has allowed for the modified behavior of PF1 in the externally gated
modes.
CF2 — Queue 2 Completion Flag
used to determine if queue 1 should be enabled again. In either
externally gated mode, setting PF1 indicates that the results for
queue 1 have not been collected during one scan (coherently).
PF1 is maintained by the QADC regardless of whether the
corresponding interrupt is enabled. PF1 may be polled to determine if
the QADC has reached a pause in scanning a queue.
See
modes.
CF2 indicates that a queue 2 scan has been completed. CF2 is set by
the QADC when the input channel sample requested by the last CCW
in queue 2 is converted, and the result is stored in the result table.
The end-of-queue 2 is identified when the current CCW contains
an end-of-queue code (channel 63) instead of a valid channel number
Freescale Semiconductor, Inc.
Externally triggered single-scan
Externally triggered continuous-scan
Interval timer trigger single-scan
Interval timer continuous-scan
Software-initiated single-scan
Software-initiated continuous-scan
Externally gated single-scan
Externally gated continuous-scan
For More Information On This Product,
Queued Analog-to-Digital Converter (QADC)
1 = Queue 1 has reached a pause or gate closed before
0 = Queue 1 has not reached a pause or gate has not closed before
Table 19-6
end-of-queue in gated mode.
end-of-queue in gated mode.
Go to: www.freescale.com
Scan Mode
Table 19-6. CCW Pause Bit Response
for a summary of CCW pause bit response in all scan
Queued Analog-to-Digital Converter (QADC)
Queue Operation
Continues
Continues
Continues
Continues
Pauses
Pauses
Pauses
Pauses
Register Descriptions
Advance Information
PF Asserts?
Yes
Yes
Yes
Yes
Yes
Yes
No
No
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