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參數(shù)資料
| 型號(hào)： | QADCRM |
| 英文描述： | Queued Analog-to-Digital Converter Reference Manual |
| 中文描述： | 排隊(duì)模擬到數(shù)字轉(zhuǎn)換器參考手冊(cè) |
| 文件頁(yè)數(shù)： | 106/122頁(yè) |
| 文件大小： | 940K |
| 代理商： | QADCRM |
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MOTOROLA
B-6
REGISTER SUMMARY
QADC
REFERENCE MANUAL
CIE2 — Queue 2 Completion Software Interrupt Enable
0 = Disable the queue completion interrupt associated with queue 2.
1 = Enable an interrupt after the conversion of the sample requested by the last
CCW in queue 2.
PIE2 — Queue 2 Pause Software Interrupt Enable
0 = Disable the pause interrupt associated with queue 2.
1 = Enable an interrupt after the conversion of the sample requested by a CCW in
queue 2 which has the pause bit set.
SSE2 — Queue 2 Single-Scan Enable Bit
0 = Trigger events are not accepted for single-scan modes.
1 = Accept a trigger event to start queue 2 in a single-scan mode.
MQ2[12:8] — Queue 2 Operating Mode
The MQ2 field selects the queue operating mode for queue 2.
Table B-5
shows the
bits in the MQ2 field which enable different queue 2 operating modes.
QACR2 —
Control Register 2
$####0E
15
CIE2
14
PIE2
13
12
11
10
MQ2
9
8
7
6
5
4
3
2
1
0
SSE2
RES
NOT
USED
BQ2
RESET:
0
0
0
0
0
0
0
0
0
1
0
0
1
1
1
Table B-5 Queue 2 Operating Modes
MQ2[12:8]
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
10000
10001
10010
10011
10100
10101
10110
Operating Modes
Disabled mode, conversions do not occur
Software triggered single-scan mode (started with SSE2)
External trigger rising edge single-scan mode (on ETRIG2 pin)
External trigger falling edge single-scan mode (on ETRIG2 pin)
Interval timer single-scan mode: time = QCLK period x 2
7
Interval timer single-scan mode: time = QCLK period x 2
8
Interval timer single-scan mode: time = QCLK period x 2
9
Interval timer single-scan mode: time = QCLK period x 2
10
Interval timer single-scan mode: time = QCLK period x 2
11
Interval timer single-scan mode: time = QCLK period x 2
12
Interval timer single-scan mode: time = QCLK period x 2
13
Interval timer single-scan mode: time = QCLK period x 2
14
Interval timer single-scan mode: time = QCLK period x 2
15
Interval timer single-scan mode: time = QCLK period x 2
16
Interval timer single-scan mode: time = QCLK period x 2
17
Reserved mode
Reserved mode
Continuous-scan software triggered mode
External trigger rising edge continuous-scan mode (on ETRIG2 pin)
External trigger falling edge continuous-scan mode (on ETRIG2 pin)
Periodic timer continuous-scan mode: time = QCLK period x 2
7
Periodic timer continuous-scan mode: time = QCLK period x 2
8
Periodic timer continuous-scan mode: time = QCLK period x 2
9
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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