Specifications

Wireless-Tag Technology Co., Ltd. V1.0.0
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12
 16-bit auto-reload up-counter
 16-bit programmable Prescaler used to divide (on the fly) the counter clock frequency by
any factor between 1 and 65536
 Synchronization circuit can control the timer with external signal and interconnect several
timers
 Interrupt/DMA request is generated when the following event occurs:
 Update: Counter overflow/underflow, counter initialization (by software or
internal/external trigger)
 Trigger input for an external clock or cycle-by-cycle current management
4.13 Low-Power Timer(LPTIM)
LPTIM is a 16-bit timer that is designed for low-power applications. Thanks to multiple clock sources,
LPTIM supports the use of external input as a clock source, and can also count when the internal clock
source is stopped.
The features are as follows:

16-bit up-counter
 3-bit Prescaler with 8 possible dividing factors (1,2,4,8,16,32,64,128)

Clock sources
 Internal clock sources: HSE, HIS, LSI, LSE, HSE, PLL

External clock source: external port input
 16-bit ARR auto-reload register

16-bit compare register
 Continuous or one-shot mode optional

Software or hardware trigger optional
 Programmable filter

Configurable output: Pulse, PWM, Flip
 Configurable output polarity
4.14 Analog-to-Digital Converter(ADC)
The ADC module is a 12-bit precision successive approximation analog-to-digital converter. It has up to 8
multiplexed channels allowing it to measure 8 external signals, two internal signals and BVAT voltage
signals. A/D conversion of the various channels can be performed in single, continuous, scan, or
discontinuous mode. The result of the ADC is stored in a left-aligned or right-aligned 16-bit data register.
The ADC module has an analog watchdog feature, allows the application to detect if the input voltage