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ST723219 Datasheet(PDF) 67 Page - STMicroelectronics

No. de pieza ST723219
Descripción Electrónicos  8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE
PDF  185 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST723219 Datasheet(HTML) 67 Page - STMicroelectronics

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PWM AUTO-RELOAD TIMER (Cont’d)
INPUT CAPTURE
CONTROL / STATUS REGISTER (ARTICCSR)
Read /Write
Reset Value: 0000 0000 (00h)
Bit 7:6 = Reserved, always read as 0.
Bit 5:4 = CS[2:1]
Capture Sensitivity
These bits are set and cleared by software. They
determine the trigger event polarity on the corre-
sponding input capture channel.
0: Falling edge triggers capture on channel x.
1: Rising edge triggers capture on channel x.
Bit 3:2 = CIE[2:1]
Capture Interrupt Enable
These bits are set and cleared by software. They
enable or disable the Input capture channel inter-
rupts independently.
0: Input capture channel x interrupt disabled.
1: Input capture channel x interrupt enabled.
Bit 1:0 = CF[2:1]
Capture Flag
These bits are set by hardware and cleared by
software reading the corresponding ARTICRx reg-
ister. Each CFx bit indicates that an input capture x
has occurred.
0: No input capture on channel x.
1: An input capture has occured on channel x.
INPUT CAPTURE REGISTERS (ARTICRx)
Read only
Reset Value: 0000 0000 (00h)
Bit 7:0 = IC[7:0]
Input Capture Data
These read only bits are set and cleared by hard-
ware. An ARTICRx register contains the 8-bit
auto-reload counter value transferred by the input
capture channel x event.
70
0
0
CS2
CS1
CIE2
CIE1
CF2
CF1
70
IC7IC6
IC5IC4
IC3IC2
IC1IC0



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