User`s guide

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 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 to be only 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 - I2C Clock line
SDA - I2C Data line
+5V - VCC-5V power line
GND - Reference Ground
DATA BUS
PA5
PA4
PA2
PE2
PG0
PD5
PA0
PA1
PB2
PB3
PH0
PC4
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
1
VCC-3.3V VCC-5V
PA5
PA4
PA2
PE3
PD6
PG1 PD2
PD3
PB2
PB3
PC6
PH1
VCC-3.3V VCC-5V
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
2
Figure 7-1:
mikroBUS
™
connection
schematics
connectivity
EasyMx PRO
v7
Integrate mikroBUS
™
in your design
page 20