User's Manual

Skylab M&C Technology Co., Ltd
Application Block Diagram
SKB501 Block Diagram
Interfaces
Power Supply
Regulated power for the SKB501 is required. The input voltage Vcc range should be 1.7V to 3.6V. Suitable
decoupling must be provided by external decoupling circuitry (10uF and 0.1uF). It can reduce the noise from
power supply and increase power stability.
System Function Interfaces
GPIOs
The general purpose I/O is organized as one port with up to 20 I/Os enabling access and control of up to 19
pins through one port. Each GPIO can be accessed individually with the following user configurable
features:
1、Input/output direction
2、Output drive strength
3、Internal pull-up and pull-down resistors
4、Wake-up from high or low level triggers on all pins
5、Trigger interrupt on all pins
6、All pins can be used by the PPI task/event system; the maximum number of pins that
Bluetooth Module
SKB501- User Manual