Total Phase Aardvark I2C/SPI User Manual
Aardvark I2C/SPI
TOTAL
PHASE
I2C/SPI
AARDVARK
Embedded Systems Interface
Activity Board
User's Manual
Summary
The Aardvark I2C/SPI Activity Board is a great tool to help with embedded
systems development. This activity board provides working slave devices
to aid developers in the debugging of their systems and interface software.
v1.00
Aug. 20, 2004
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© 2004 Total Phase, Inc.
Total Phase
Aardvark I2C/SPI Activity Board
Table of Contents
Summary...................................................................................................................................1
1. Targets...................................................................................................................................3
I2C Port Expander (U1)...............................................................................................................................3
I2C EEPROM (U2)......................................................................................................................................3
SPI EEPROM (U3)......................................................................................................................................3
2. Connectors............................................................................................................................4
Port Expander (J1)......................................................................................................................................4
I2C Port Expander configurable address (J2).............................................................................................4
I2C EEPOM configurable address (J3).......................................................................................................4
SS Connect (J4)..........................................................................................................................................4
External Monitor Connector (J5)..................................................................................................................5
I2C Pins.................................................................................................................................................5
SPI Pins................................................................................................................................................5
Aardvark I2C/SPI Host Adapter connectors (Aardvark 1 & Aardvark 2)......................................................5
Powering the Activity Board .................................................................................................................5
Cross Connecting Aardvark Adapters...................................................................................................5
Connecting Multiple Activity Boards......................................................................................................5
2.1. Configurable I2C Address............................................................................................................7
3. References............................................................................................................................8
3.1. Examples......................................................................................................................................8
3.2. Technical Specifications...............................................................................................................8
4. Legal / Contact......................................................................................................................9
4.1. Disclaimer.....................................................................................................................................9
4.2. Contact Information......................................................................................................................9
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1. Targets
Aardvark I2C/SPI Activity Board
The Aardvark I2C/SPI Activity Board features three different targets for
testing and development. Specifications for each target device can be
found on the manufacturer's websites. Below you will find the part numbers and a link to online resources for each part.
I2C Port Expander (U1)
I2C EEPROM (U2)
SPI EEPROM (U3)
Figure 1: Aardvark I2C/SPI Activity Board Targets
Please note that these links may become outdated and Total Phase cannot guarantee that they will function. For the latest information about
these targets, please visit our website: http://www.totalphase.com/
PCA9554AD - 8-bit I2C and SMBus I/O Port with Interrupts (Philips)
http://www.semiconductors.philips.com/pip/PCA9554AD.html
AT24C02 – 2-Wire Bus Serial EEPROM (Atmel)
256 bytes / 2 kilobit - 8 bytes / page
http://www.atmel.com/dyn/products/product_card.asp?family_id=647&fa
mily_name=Serial+EEPROM&part_id=2805
AT25080A – SPI Bus Serial EEPROM, High Speed, supports SPI Mode
0 and 3. (Atmel)
1 kilobit / 8 kilobytes - 32 bytes / page
http://www.atmel.com/dyn/products/product_card.asp?family_id=647&fa
mily_name=Serial+EEPROM&part_id=3020
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