ST723217 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST723217

8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE

STMicroelectronics 

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ST72321

16-BIT TIMER (Cont’d)

Figure 46. Input Capture Block Diagram

ICAP1

pin

EDGE DETECT EDGE DETECT

ICIE

ICAP2

CIRCUIT2

CIRCUIT1

pin

IC2R Register

IC1R Register

ICF1

16-BIT

16-BIT FREE RUNNING

COUNTER

(Control Register 1) CR1

IEDG1

(Status Register) SR

ICF2

0

0

0

(Control Register 2) CR2

CC1 CC0 IEDG2

Figure 47. Input Capture Timing Diagram

TIMER CLOCK

COUNTER REGISTER

ICAPi PIN

ICAPi FLAG

FF01

FF02

ICAPi REGISTER

Note: The rising edge is the active edge.

FF03

FF03

74/185

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