參數(shù)資料
型號: QADCRM
英文描述: Queued Analog-to-Digital Converter Reference Manual
中文描述: 排隊模擬到數(shù)字轉(zhuǎn)換器參考手冊
文件頁數(shù): 93/122頁
文件大?。?/td> 940K
代理商: QADCRM
QADC
REFERENCE MANUAL
QUEUE PRIORITY EXAMPLES
MOTOROLA
9-7
Figure 9-10 CCW Priority Situation 10
Figure 9-11 CCW Priority Situation 11
The above situations cover normal overlap conditions that arise with asynchronous
trigger events on the two queues. An additional conflict to consider is that the freeze
condition can arise while the QADC is actively executing CCWs. The conventional use
for the freeze mode is for software/hardware debugging. When the CPU background
debug mode is enabled and a breakpoint occurs, the freeze signal is issued, which can
cause peripheral modules to stop operation. When freeze is detected, the QADC com-
pletes the conversion in progress, unlike queue 1 suspending queue 2. After the freeze
condition is removed, the QADC continues queue execution with the next CCW in se-
quence.
QADC S10
T1
T1
PAUSE
Q1
Q2
QS
IDLE
ACTIVE
IDLE
ACTIVE
IDLE
0010
0110
1010
0010
ACTIVE
0000
IDLE
Q1:
PF1
C1
C2
0000
1010
0101
ACTIVE
PAUSE
0110
Q2:
T2
PF2
C1
C2
C3
C4
CF1
C3
C4
CF2
T2
C3
SUSPEND
ACTIVE
C1
ACT
SUSPEND
T2
TOR2
T2
TOR2
QADC S11
T1
T1
C3
C4
CF1
PAUSE
Q1
Q2
QS
IDLE
ACTIVE
IDLE
ACT
IDLE
0010
0110
1010
0010
ACTIVE
0000
IDLE
Q1:
PF1
C1
C2
0000
1010
0101
ACTIVE
PAUSE
0110
Q2:
T2
SUSPEND
ACT
C1
ACTIVE
SUSPEND
T2
TOR2
T2
TOR2
C2
PF2
C4
CF2
T2
C3
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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