QADC64E Legacy Mode Operation
MPC561/MPC563 Reference Manual, Rev. 1.2
13-30
Freescale Semiconductor
sub-queue CCWs, all of the samples are guaranteed to have been taken during the same scan pass.
However, a high trigger event rate for queue 1 can prohibit the completion of queue 2. If this
occurs, the software may choose to begin execution of queue 2 with the aborted CCW entry.
•
Software can change the queue operating mode to disabled mode. Any conversion in progress for
that queue is aborted. Putting a queue into the disabled mode does not power down the converter.
•
Software can change the queue operating mode to another valid mode. Any conversion in progress
for that queue is aborted. The queue restarts at the beginning of the queue, once an appropriate
trigger event occurs.
•
For low power operation, software can set the stop mode bit to prepare the module for a loss of
clocks. The QADC64E aborts any conversion in progress when the stop mode is entered.
•
When the freeze enable bit is set by software and the IMB3 internal FREEZE line is asserted, the
QADC64E freezes at the end of the conversion in progress. When internal FREEZE is negated, the
QADC64E resumes queue execution beginning with the next CCW entry. Refer to
“Configuration and Control Using the IMB3 Interface
” for more information.
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LSB
15
Field
—
P
BYP
IST
CHAN[5:0]
Reset
Unaffected
Addr
0x30 4A00 – 0x30 4A7F, 0x30 4E00 – 0x30 4E7F
Figure 13-16. Conversion Command Word Table (CCW)
Table 13-18. CCW Bit Descriptions
Bits
Name
Description
0:5
—
Reserved
6
P
Pause. The pause bit allows the creation of sub-queues within queue 1 and queue 2. The
QADC64E performs the conversion specified by the CCW with the pause bit set, and then the
queue enters the pause state. Another trigger event causes execution to continue from the pause
to the next CCW.
0 Do not enter the pause state after execution of the current CCW.
1 Enter the pause state after execution of the current CCW.
7
BYP
Sample amplifier bypass. Setting BYP enables the amplifier bypass mode for a conversion, and
subsequently changes the timing. Refer to
Section 13.4.1.2, “Amplifier Bypass Mode Conversion
,” for more information.
0 Amplifier bypass mode disabled.
1 Amplifier bypass mode enabled.
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...