L9803 datasheet(57/126 Pages) STMICROELECTRONICS

Part #	L9803

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

PDF	126 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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57 / 126 page

L9803

On-Chip Peripherals

57/126

An input capture has occurred.To clear this bit, first read the SR register, then read or

write the low byte of the ICR2 (ICLR2) register.

Bit 3 = OCF2 Output Compare Flag 2.

No match (reset value)

The content of the free running counter has matched the content of the OCR2 register.

To clear this bit, first read the SR register, then read or write the low byte of the OCR2

(OCLR2) register.

Bit 2-0 = Unused.

INPUT CAPTURE 1 HIGH REGISTER (ICHR1)

Timer1 Register Address: 0034h

Timer2 Register Address: 0044h

Read Only

Reset Value: Undefined

This is an 8-bit read only register that contains the high part of the counter value (transferred

by the input capture 1 event).

INPUT CAPTURE 1 LOW REGISTER (ICLR1)

Timer1 Register Address: 0035h

Timer2 Register Address: 0045h

Read Only

Reset Value: Undefined

This is an 8-bit read only register that contains the low part of the counter value (transferred

by the input capture 1 event).

MSB

LSB

MSB

LSB

L9803 Datasheet(PDF) 57 Page - STMicroelectronics