ST72521 STMICROELECTRONICS [STMicroelectronics], ST72521 Datasheet - Page 75

• Manufacturer Part Number: ST72521
• Description: 8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

16-BIT TIMER (Cont’d)
Figure 46. Input Capture Block Diagram
Figure 47. Input Capture Timing Diagram
ICAP1
ICAP2
pin
pin
COUNTER REGISTER
ICAPi REGISTER
Note: The
TIMER CLOCK
ICAPi FLAG
16-BIT
EDGE DETECT
IC2R Register
ICAPi PIN
16-BIT FREE RUNNING
CIRCUIT2
rising edge is the
COUNTER
FF01
EDGE DETECT
CIRCUIT1
IC1R Register
a
ctive edge.
FF02
ICF1
ICIE
FF03
ICF2
(Control Register 1) CR1
(Control Register 2) CR2
CC1
(Status Register) SR
CC0
FF03
0
IEDG2
IEDG1
0
ST72521
0
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