MIKROE-951 mikroElektronika, MIKROE-951 Datasheet
MIKROE-951
Manufacturer Part Number
MIKROE-951
Description
Daughter Cards & OEM Boards EXPAND click MIKROBUS VERSION
Manufacturer
mikroElektronika
Datasheet
1.MIKROE-951.pdf
(2 pages)
Specifications of MIKROE-951
Rohs
yes
Product
I/O Expander Additional Boards
Interface Type
SPI
Operating Supply Voltage
3.3 V, 5V
Tool Is For Evaluation Of
MCP23S17
For Use With
Development Boards
EXPAND Click is an accessory board in
mikroBus™
I/O expander
speeds up to 10 MHz for higher throughput
applications. Three
SEL
address and connect up to eight devices on
the bus. Controller also supports interrupt-on-
change. Board is set to use 3.3V power supply
by default. Solder
5V position if used with 5V systems.
1. Introduction
EXPAND
jumpers allow you to configure board
form factor. It includes a 16-bit
MCP23S17
PWR SEL
HARDWARE ADDRESS
with SPI clock
click
SMD jumper to
Before using your click board, make sure
to solder the provided 1x8 male headers
to both sides of the board. Two 1x8 male
headers are included with the board in
the package.
Turn the board
upside down, so
that bottom side is facing
you upwards. Place shorter
parts of the header
pins in the
soldering pad
locations.
2
2. Soldering the headers
Turn the board
upward again.
Make sure to align
the headers so that they are
perpendicular to the
board, then solder
the pins
carefully.
3. Plugging the board in
Once you have soldered the headers your
board is ready to be placed into desired
mikroBUS™ socket. Make sure to align the
cut in the lower-right part of the board
with the markings on the silkscreen at the
mikroBUS™ socket. If all the pins are aligned
3
correctly, push the board all the way
into the socket.
1
4. Using The Board
Communication with on-board port expander
is done through SPI communication interface.
The 16 I/O port bits are divided into two 8-bit
ports (PORTA and PORTB). The
can be configured to operate in the 8-bit or
16-bit mode. All pins act as bidirectional I/Os
and can be enabled for interrupt-on-change
and/or internal weak pull-up resistor.
0 100000 020074
click
BOARD
www.mikroe.com
EXPAND click Manual
ver. 1.00
MCP23S17
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MIKROE-951 Summary of contents
Page 1
... The 16 I/O port bits are divided into two 8-bit ports (PORTA and PORTB). The MCP23S17 can be configured to operate in the 8-bit or 16-bit mode. All pins act as bidirectional I/Os and can be enabled for interrupt-on-change and/or internal weak pull-up resistor. click BOARD www.mikroe.com EXPAND click Manual ver. 1.00 0 100000 020074 ...
Page 2
... GND GND MikroElektronika assumes no responsibility or liability for any errors or inaccuracies that may appear in the present document. Specification and information contained in the present schematic are subject to change at any time without notice. Copyright © 2012 MikroElektronika. All rights reserved. VCC R2 100K J4 J2 ...