MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 524

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

Queued Analog-to-Digital Converter (QADC)
19.12 Interrupts
19.12.1 Interrupt Operation
Advance Information
524
CAUTION:
Leakage below 200 nA is obtainable only within a limited temperature
range.
The four interrupt lines are outputs of the module and have no priority or
arbitration within the module.
QADC inputs can be monitored by polling or by using interrupts. When
interrupts are not needed, the completion flag and the pause flag for
each queue can be monitored in the Status Register (QASR0). In other
words, flag bits can be polled to determine when new results are
available.
Table 19-16
correspond to queue 1 and queue 2 activity.
Queue 1
Queue 2
Queue
Source Impedance
Freescale Semiconductor, Inc.
For More Information On This Product,
Queued Analog-to-Digital Converter (QADC)
Table 19-16. QADC Status Flags and Interrupt Sources
Table 19-15. Error Resulting from Input Leakage (I
100 k
10 k
1 k
Result written for last CCW in queue 1
Result written for a CCW with pause bit set in
Result written for last CCW in queue 2
Result written for a CCW with pause bit set in
queue 1
queue 2
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shows the status flag and interrupt enable bits which
0.2 counts
Queue Activity
2 counts
100 nA
—
Leakage Value (10-Bit Conversions)
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
0.4 counts
200 nA
4 count
—
0.1 counts
10 counts
1 counts
500 nA
Status
Flag
CF1
CF2
PF1
PF2
MOTOROLA
Off
0.2 counts
20 counts
Enable Bit
1000 nA
2 counts
Interrupt
)
CIE1
CIE2
PIE1
PIE2