L9805E datasheet(46/127 Pages) STMICROELECTRONICS

Part #	L9805E

Description	Super smart power motor driver with 8-Bit MCU, RAM, EEPROM, ADC, WDG, Timers, PWM and H-bridge driver

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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On-Chip Peripherals

L9805E

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Figure 20.

Counter Timing Diagram, internal clock divided by 2

Figure 21.

Counter Timing Diagram, internal clock divided by 4

Figure 22.

Counter Timing Diagram, internal clock divided by 8

Input Capture

In this section, the index, i, may be 1 or 2

The two input capture 16-bit registers (ICR1 and ICR2) are used to latch the value of the

free running counter after a transition detected by the ICAPi pin (see figure 5)

.

ICRi register is a read-only register.

MS Byte

LS Byte

ICRi

ICHRi

ICLRi

CPU CLOCK

FFFD FFFE FFFF 0000

0001

0002

0003

INTERNAL RESET

TIMER CLOCK

COUNTER REGISTER

OVERFLOW FLAG TOF

FFFC

FFFD

0000

0001

CPU CLOCK

INTERNAL RESET

TIMER CLOCK

COUNTER REGISTER

OVERFLOW FLAG TOF

CPU CLOCK

INTERNAL RESET

TIMER CLOCK

COUNTER REGISTER

OVERFLOW FLAG TOF

FFFC

FFFD

0000

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