Datasheet

http://www.mikroe.com/mikrobus
mikroBUS
™
sockets
mikroBUS
™
pinout explained
Easier connectivity and simple conguration
are imperative in modern electronic devices.
Success of the USB standard comes from it’s
simplicity of usage and high and reliable data
transfer rates. As we in mikroElektronika see it,
Plug-and-Play devices with minimum settings
are the future in embedded world too. This is
why our engineers have come up with a simple,
but brilliant pinout with lines that most of
today’s accessory boards require, which almost
completely eliminates the need of additional
hardware settings. We called this new standard
the mikroBUS
™
. EasyMx PRO
™
v7 for STM32
supports mikroBUS
™
with two on-board
sockets. As you can see, there are no additional
DIP switches, or jumper selections. Everything
is already routed to the most appropriate pins
of the microcontroller sockets.
mikroBUS
™
host connector
Each mikroBUS
™
host connector consists of two
1x8 female headers containing pins that are
most likely to be used in the target accessory
board. There are three groups of communication
pins: SPI, UART and I
2
C communication. There
are also single pins for PWM, Interrupt,
Analog input, Reset and Chip Select. Pinout
contains two power groups: +5V and GND on
one header and +3.3V and GND on the other
1x8 header.
mikroBUS
™
is not made only to be a part of our development boards. You can freely place
mikroBUS
™
host connectors in your nal PCB designs, as long as you clearly mark them with
mikroBUS
™
logo and footprint specications. For more information, logo artwork and
PCB les visit our website:
AN - Analog pin
RST - Reset pin
CS - SPI Chip Select line
SCK - SPI Clock line
MISO - SPI Slave Output line
MOSI - SPI Slave Input line
+3.3V - VCC-3.3V power line
GND - Reference Ground
PWM - PWM output line
INT - Hardware Interrupt line
RX - UART Receive line
TX - UART Transmit line
SCL - I
2
C Clock line
SDA - I
2
C Data line
+5V - VCC-5V power line
GND - Reference Ground
DATA BUS
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
21
VCC-3.3V VCC-5V VCC-3.3V VCC-5V
PD8
PD9
PD10 PD11
PD12
PD13 PD14
PC2 PC3
PA0PA4 PA5
PB6
PB7
PB6
PB7
PD5
PD6
MCU_MOSI
MCU_SCK
MCU_MISO
MCU_MOSI
MCU_SCK
MCU_MISO
Figure 7-1:
mikroBUS
™
connection
schematic
connectivity
EasyMx PRO
v7
page 20
Integrate mikroBUS
™
in your design