ST7LITEUS5 datasheet(65/136 Pages) STMICROELECTRONICS

65 / 136 page

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On-chip peripherals

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On-chip peripherals

10.1

Lite timer (LT)

10.1.1

Introduction

The Lite Timer can be used for general-purpose timing functions. It is based on a free-

running 13-bit upcounter with two software-selectable timebase periods, an 8-bit input

capture register and watchdog function.

10.1.2

Main features

●

Real-time clock

–

13-bit upcounter

–

1 ms or 2 ms timebase period (@ 8 MHz fOSC)

–

Maskable timebase interrupt

●

Input capture

–

8-bit input capture register (LTICR)

–

Maskable interrupt with wakeup from Halt mode capability

●

Watchdog

–

Enabled by hardware or software (configurable by option byte)

–

Optional reset on HALT instruction (configurable by option byte)

–

Automatically resets the device unless disable bit is refreshed

–

Software reset (forced watchdog reset)

–

Watchdog reset status flag

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ST7LITEUS5 数据表(PDF) 65 Page - STMicroelectronics

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