參數(shù)資料
型號： AT91M40807-33AI
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： Microcontroller
中文描述： 32-BIT, MROM, 33 MHz, RISC MICROCONTROLLER, PQFP100
封裝： 1.40 MM HEIGHT, TQFP-100
文件頁數(shù)： 129/153頁
文件大?。?/td> 1837K
代理商： AT91M40807-33AI
129
AT91X40 Series
1354D
–
ATARM
–
05/02
Output Controller
The output controller defines the output level changes on TIOA and TIOB following an
event. TIOB control is used only if TIOB is defined as output (not as an external event).
The following events control TIOA and TIOB: software trigger, external event and RC
compare. RA compare controls TIOA and RB compare controls TIOB. Each of these
events can be programmed to set, clear or toggle the output as defined in the corre-
sponding parameter in TC_CMR.
The tables below show which parameter in TC_CMR is used to define the effect of each
event.
If two or more events occur at the same time, the priority level is defined as follows:
1.
Software Trigger
2.
External Event
3.
RC Compare
4.
RA or RB Compare
Status
The following bits in the status register are significant in Waveform Mode:
CPAS: RA Compare Status
There has been a RA Compare match at least once since the last read of the status
CPBS: RB Compare Status
There has been a RB Compare match at least once since the last read of the status
CPCS: RC Compare Status
There has been a RC Compare match at least once since the last read of the status
COVFS: Counter Overflow
Counter has attempted to count past $FFFF since the last read of the status
ETRGS: External Trigger
External trigger has been detected since the last read of the status
Note:
All the status bits are set when the corresponding event occurs and they are automati-
cally cleared when the Status Register is read.
Parameter
TIOA Event
ASWTRG
Software Trigger
AEEVT
External Event
ACPC
RC Compare
ACPA
RA Compare
Parameter
TIOB Event
BSWTRG
Software Trigger
BEEVT
External Event
BCPC
RC Compare
BCPB
RB Compare
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