3.4.10.2 mikroBUS2 Connector

The second mikroBUS™ socket (J61) implements all mikroBUS features, as shown in the schematic below. The reset feature is provided (by default) by the system reset line and can be swapped using resistors R231, R232 and R233.

Figure 3-36. mikroBUS2 Interface
Table 3-17. mikroBUS2 Connector J61 Pin Assignment
FunctionmikroBUS SignalPIOPin NoPin NoPIOmikroBUS SignalFunction

Analog input

MBUS1_0.MBUS_AN

PA31

1

16

PC21

MBUS1_0.MBUS_PWM

PWM

Reset

MBUS1_0.MBUS_nRST

PA17

2

15

PB18

MBUS1_0.MBUS_INT

Interrupt

SPI chip select

MBUS1_0.MBUS_CS

PC19

3

14

PA29

MBUS1_0.MBUS_RX

UART receive

SPI clock

MBUS1_0.MBUS_SCK

PC26

4

13

PA28

MBUS1_0.MBUS_TX

UART transmit

SPI MISO

MBUS1_0.MBUS_MISO

PC23

5

12

PC1

MBUS1_0.MBUS_TWCK

TWI clock

SPI MOSI

MBUS1_0.MBUS_MOSI

PC22

6

11

PC0

MBUS1_0.MBUS_TWD

TWI data

VCC

VDD_3V3

–

7

10

–

5V_MAIN

VDD

Ground

GND

–

8

9

–

GND

Ground