3.4.6 mikroBUS Interface

The SAM9X60-Curiosity hosts a mikroBUS socket (J8). The mikroBUS standard defines the main board sockets and add-on boards used for interfacing the microprocessor with integrated modules having a proprietary pin configuration. For details, refer to the mikroBUS documentation on web page.

Figure 3-20. mikroBUS Interface

Table 3-13. mikroBUS Connector J8 Pin Assignment
Function	PIO	Mbus Signal	Pin #	Pin #	Mbus Signal	PIO	Function
Analog	PB14	AN	1	16	PWM	PB13	Pulse Width Modulated
Reset	PB25 o PD16	RST	2	15	INT	PB18	Interrupt
SPI Chip Select	PA8	CS	3	14	RX	PC1	UART receive (output from mikroBus into SAM)
SPI Clock	PA23	SCK	4	13	TX	PC0	UART transmit (input from SAM into mikroBus)
SPI MISO	PA21	MISO	5	12	SCL	PA1	TWI clock
SPI MOSI	PA22	MOSI	6	11	SDA	PA0	TWI data
VDD	_	3.3V	7	10	5V	_	VDD
Ground	_	GND	8	9	GND	_	Ground