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参数资料
| 型号： | ST7FL09Y0MATRE |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PDSO16 |
| 封装： | 0.150 INCH, ROHS COMPLIANT, PLASTIC, SOP-16 |
| 文件页数： | 49/104页 |
| 文件大小： | 2151K |
| 代理商： | ST7FL09Y0MATRE |
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Obsolete
Product(s)
- Obsolete
Product(s)
ST7L05, ST7L09
49/104
12-BIT AUTORELOAD TIMER (Cont’d)
Figure 30. PWM Signal Example
Output Compare Mode
To use this function, the OE bit must be 0, other-
wise the compare is done with the shadow register
instead of the DCRx register. Software must then
write a 12-bit value in the DCR0H and DCR0L reg-
isters. This value is loaded immediately (without
waiting for an OVF event).
The DCR0H must be written first, the output com-
pare function starts only when the DCR0L value is
written.
When the 12-bit upcounter (CNTR) reaches the
value stored in the DCR0H and DCR0L registers,
the CMPF0 bit in the PWM0CSR register is set
and an interrupt request is generated if the CMPIE
bit is set.
Note: The output compare function is only availa-
ble for DCRx values other than 0 (reset value).
Caution: At each OVF event, the DCRx value is
written in a shadow register, even if the DCR0L
value has not yet been written (in this case, the
shadow register will contain the new DCR0H value
and the old DCR0L value), then:
– If OE = 1 (PWM mode): The compare is done be-
tween the timer counter and the shadow register
(and not DCRx).
– if OE = 0 (OCMP mode): The compare is done
between the timer counter and DCRx. There is
no PWM signal.
The compare between DCRx or the shadow regis-
ter and the timer counter is locked until DCR0L is
written.
11.2.4 Low Power Modes
11.2.5 Interrupts
Notes:
1. The interrupt events are connected to separate inter-
rupt vectors (see Interrupts chapter).
They generate an interrupt if the enable bit is set in the
ATCSR register and the interrupt mask in the CC register
is reset (RIM instruction).
2. Only if CK0 = 1 and CK1 = 0.
COUNTER
PW
M0
OUTPU
T
t
WI
TH
OE
0
=
1
AN
D
OP0
=
0
FFDh
FFEh
FFFh
FFDh
FFEh
FFFh
FFDh
FFEh
DCR0 = FFEh
ATR = FFDh
fCOUNTER
Mode
Description
SLOW
The input frequency is divided by 32
WAIT
No effect on AT timer
ACTIVE HALT
AT timer halted except if CK0 = 1,
CK1 = 0 and OVFIE = 1
HALT
AT timer halted
Interrupt
Event1)
Event
Flag
Enable
Control
Bit
Exit
from
Wait
Exit
from
Halt
Exit
from
Active
Halt
Overflow
Event
OVF
OVFIE
Yes
No
Yes2)
CMP Event
CMPFx CMPIE
Yes
No
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ST7FL09Y0MB | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit MCU for automotive with single voltage Flash memory, data EEPROM, ADC, timers, SPI |
| ST7FL09Y0MBE | 制造商:STMicroelectronics 功能描述: |
| ST7FL15F1MAE | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit MCU for automotive with single voltage Flash/ROM memory, data EEPROM, ADC, 5 timers, SPI |
| ST7FL15F1MARE | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit MCU for automotive with single voltage Flash/ROM memory, data EEPROM, ADC, 5 timers, SPI |
| ST7FL15F1MATRE | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit MCU for automotive with single voltage Flash/ROM memory, data EEPROM, ADC, 5 timers, SPI |
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