page 26
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
1
VCC-3.3V
VCC-5V
G4.5
G4.4
G0.5
G3.2
G3.1
G2.4
G0.1
G4.6
G4.7
G2.3
G2.1
G2.2
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
3
VCC-3.3V
VCC-5V
G4.5
G4.4
G0.7
G3.6
G3.5
G2.6
G0.3
G4.6
G4.7
G2.3
G2.1
G2.2
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
2
VCC-3.3V
VCC-5V
G4.5
G4.4
G0.6
G3.4
G3.3
G2.5
G0.2
G4.6
G4.7
G2.3
G2.1
G2.2
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
4
VCC-3.3V
VCC-5V
G4.5
G4.4
G1.0
G4.0
G3.7
G2.7
G0.4
G4.6
G4.7
G2.3
G2.1
G2.2
D
AT
A BUS
Figure 7-1: Connection schematic of on-board mikroBUS
™
host sockets
connectivity
mikroBUS
™
sockets
Easier connectivity and simple configuration 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
™
.
mikromedia
™
workStation v7 supports mikroBUS
™
with four
on-board host 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.
SCL
- I2C Clock line
SDA
- I2C Data line
+5V
- VCC-5V power line
GND
- Reference Ground
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.
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
- Interrupt line
RX
- UART Receive line
TX
- UART Transmit line
AN
- Analog pin
RST
- Reset pin
CS
- SPI Chip Select line
SCK
- SPI Clock line
