Data Sheet

MK02 Bluetooth Module

Datasheet

www.mokoblue.com

5.2.3 Flash Program I/O

The module has two programmer pins, respectively SWDCLK pin and SWDIO pin. The two pin Serial

Wire Debug (SWD) interface provided as a part of the Debug Access Port (DAP) offers a flexible and

powerful mechanism for non- intrusive debugging of program code. Breakpoints and single stepping

are part of this support.

5.2.4 Serial Peripheral Interface

The SPI interfaces enable full duplex synchronous communication between devices. They support a

three-wire (SCK, MISO, MOSI) bi-directional bus with fast data transfers. The SPI Master can

communicate with multiple slaves using individual chip select signals for each of the slave devices

attached to a bus. Control of chip select signals is left to the application through use of GPIO signals.

SPI Master has double buffered I/O data. The SPI Slave includes EasyDMA for data transfer directly

to and from RAM allowing Slave data transfers to occur while the CPU is IDLE. The GPIOs are used

for each SPI interface line can be chosen from any GPIOs on the device and independently. This

enables great flexibility in device pinout and efficient use of printed circuit board space and signal

routing.

5.2.5 UART

The Universal Asynchronous Receiver/Transmitter offers fast, full-duplex, asynchronous serial

communication with built-in flow control (CTS, RTS), support in hardware up to 1 Mbps baud. Parity

checking is supported.

Note: The GPIOs are used for each SPI/TWI/UART interface line can be chosen from any GPIOs on

the device and configured independently.

5.2.6 Low Power Comparator (LPCOMP)

In System ON, the block can generate separate events on rising and falling edges of a signal, or

sample the current state of the pin as being above or below the threshold. The block can be

configured to use any of the analog inputs on the device. Additionally, the low power comparator

can be used as an analog wakeup source from System OFF or System ON. The comparator threshold

can be programmed to a range of fractions of the supply voltage.

5.2.7 Analog to Digital Converter (ADC)

The 12bit incremental Analog to Digital Converter (ADC) enables sampling of up to 8 external

signals through a front-end multiplexer. The ADC has configurable input and reference prescaling,

and sample resolution (8,10, and 12bit).

• Note: The ADC module uses the same analog inputs as the LPCOMP module. Only one of the

modules can be enabled at the same time.