Nations Technologies Inc.
Tel
:
+86-755-86309900
:
info@nationstech.com
Address: Nations Tower, #109 Baoshen Road, Hi-tech Park North.
Nanshan District, Shenzhen, 518057, P.R.China
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Low Power Timer (LPTIM)
Introduction
The LPTIM is a 16-bit timer with multiple clock sources, it can keep running in all power modes except for Standby
mode. LPTIM can run without internal clock source, it can be used as a “Pulse Counter”. Also, the LPTIM can wake
up the system from low-power modes, to realize “Timeout functions” with extreme low power consumption.
Main Features
16-bit upcounter
Clock prescaler with 3-bit to provide 8 dividing factors (1,2,4,8,16,32,64,128)
Multiple clock sources
Internal : LSE, LSI, HSI, APB1 or COMP clock
External : LPTIM input1 (working with no LP oscillator running used by Pulse Counter application)
16-bit auto-reload register
16-bit compare register
Continuous or One-shot counting mode
Programmable software or hardware input trigger
Programmable digital filter for filtering glitch
Configurable output: Pulse, PWM
Configurable I/O polarity
Encoder mode, Encoder mode Pulse counting mode, support single pulse counting, double pulse counting
(orthogonal and non-orthogonal)