APM32F103CBT6-R datasheet(27/78 Pages) GEEHY

27 / 78 page

w w w. g e e h y. c o m

P a g e 26

Name

Counter

resolution

Counter type

Prescaler

factor

Functional Description

It can be configured as a software or hardware

startup watchdog;

In debug mode, the counter can be paused for

convenience of debugging.

Window

watchdog

7 bits

Down

Can be set for free running.

The whole system can be reset in case of

problems.

Driven by the master clock, it has early warning

interrupt function;

The counter in debug mode can be frozen.

4.15

CRC

The cyclic redundancy check (CRC) computing unit can calculate the CRC code of a 32-bit

data word.

This application calculates the signature of the software in real time to facilitate comparison

with the original signature.

5 Electrical characteristics

5.1

Test conditions of electrical characteristics

5.1.1

Maximum and minimum values

Unless otherwise specified, test is conducted for all products on the production line at TA =25

℃.

Its maximum and minimum values can support the worst environmental temperature, power

supply voltage and clock frequency.

In the notes at the bottom of each table, it is stated that the data are obtained through

comprehensive evaluation, design simulation or process characteristics and are not tested on

the production line; On the basis of comprehensive evaluation, after passing the sample test,

take the average value and add and subtract three times the standard deviation (average ±3∑)

to get the maximum and minimum values.

5.1.2

Typical value

Unless otherwise specified, typical data are based on TA=25°C and VDD=3.3V (2V ≤ VDD ≤ 3.3V

voltage range).

5.1.3

Typical curve

Typical curves will only be used for design guidance.

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