RM0312 datasheet(112/275 Pages) STMICROELECTRONICS

Part #	RM0312

Description	STM8TL5xxx microcontroller family

PDF	275 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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112 / 275 page

16-bit general purpose timer (TIM2/TIM3)

RM0312

112/275

DocID022352 Rev 3

Figure 26. Counter update when ARPE=0 (ARR not preloaded) with prescaler = 2

Figure 27. Counter update when ARPE=1 (ARR preloaded), with prescaler = 1

CK_PSC

CNT_EN

TIMER CLOCK = CK_CNT

COUNTER REGISTER

UPDATE INTERRUPT FLAG (UIF)

COUNTER UNDERFLOW

UPDATE EVENT (UEV)

35 34 33 32 31 30 2F

05 04 03 02 01

AUTO-RELOAD PRELOAD REGISTER

AUTO-RELOAD SHADOW REGISTER

Write a new value in TIMx_ARR

New value transferred immediately in shadow register

CNT_EN

TIMER CLOCK = CK_CNT

COUNTER REGISTER

UPDATE INTERRUPT FLAG (UIF)

COUNTER UNDERFLOW

UPDATE EVENT (UEV)

FE FD FC FB

36 35 34

05 04 03 02 01

AUTO-RELOAD PRELOAD REGISTER

AUTO-RELOAD SHADOW REGISTER

Write a new value in TIMx_ARR

CK_PSC

New value transferred in shadow register

on counter underflow

Cleared by software

RM0312 Datasheet(PDF) 112 Page - STMicroelectronics