ST72321AR STMICROELECTRONICS [STMicroelectronics], ST72321AR Datasheet - Page 74

• Manufacturer Part Number: ST72321AR
• Description: 64/44-PIN 8-BIT MCU WITH 32 TO 60K FLASH/ROM, ADC,FIVE TIMERS, SPI, SCI, I2C INTERFACE
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST72321
16-BIT TIMER (Cont’d)
Figure 47. Input Capture Block Diagram
Figure 48. Input Capture Timing Diagram
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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
0