Total Phase Level Shifter User Manual Download Page 11

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3.5 Cross Connecting Aardvark Adapters and/or Cheetah
Adapters

When cross connecting two adapters, the board must be powered on. Otherwise, results
may be unpredictable. If you experience problems, please make sure that the

POWER

LED on the board is lit.

Level Shifter Board User Manual v1.01

Summary of Contents for Level Shifter

Page 1: ...vel Shifter Board expands the utility of all of Total Phases I C SPI and MDIO products by allowing developers to communicate analyze and power downstream devices of lower logic levels Supported produc...

Page 2: ...c levels from 1 2 V to 3 3 V Engineers can also choose to power downstream devices Figure 1 Schematic of the Flash Socket Board 1 1 Features Level shifting for I C SPI MDIO and GPIO signals On board r...

Page 3: ...1 1 5 inch 10 pin ribbon cable 3 jumpers for con guration Level Shifter Board User Manual v1 01 3...

Page 4: ...device The Level Shifter Board has been tested to operate at up to 18 MHz when shifting to 1 2 V and up to 20 MHz when shifting to 3 3 V When operating at higher speeds shorter cables are recommended...

Page 5: ...d to not supply power to the target This is a very weak leakage which is only capable of sourcing approximately 20 A of current 2 5 Board Dimensions The dimensions of Level Shifter Board are in inches...

Page 6: ...alyzer to the Level Shifter Board The second connector may be used to connect a second host adapter Examples of these situations are in order to have more slaves or to create a multi master situation...

Page 7: ...gure 5 which are used to connect the target bus to the level shifter The signal lines on these connectors are operating at the voltage levels speci ed by the user This level can either be speci ed on...

Page 8: ...two boxed connectors on the Target side of the Level Shifter Board 3 3 EXT 3 3V and EXT TGT All the bus and power signals on the board are also available through two 16 pin headers on the board Figure...

Page 9: ...or MDIO products when it is connected to the Adapter Analyzer side of the board Target power can be enabled via the Rosetta Language Bindings the Flash Center software the Aardvark Control Center Sof...

Page 10: ...ower already supplied on the board then a jumper must be placed to enable this feature Figure 9 Refer to Section 4 for more details Figure 9 When supplying power from the Level Shifter Board to the ta...

Page 11: ...Cheetah Adapters When cross connecting two adapters the board must be powered on Otherwise results may be unpredictable If you experience problems please make sure that the POWER LED on the board is...

Page 12: ...1 2 V Figure 10 A jumper must be placed on the appropriately labeled header for the desired voltage level If supplying power from the Level Shifter Board to the target a jumper needs to be place on TP...

Page 13: ...eaders Their uses are described below Figure 11 The Level Shifter Board must be con gured from the correct mode of operation when using this board to interface with an SPI or an MDIO bus MASTER When s...

Page 14: ...g of lower logic levels is still possible Simply place the SPI control jumper on MONITOR and set the Beagle I C SPI MDIO analyzer to monitor MDIO 4 5 GPIO Level Shifting GPIO signals may fall on eithe...

Page 15: ...Clines do not require any directional con guration as it is a bi directional bus Each I C line may go in a di erent direction and can also be swapped on the y Level Shifter Board User Manual v1 01 2...

Page 16: ...no warranty either express or implied This disclaimer includes but is not limited to implied warranties of merchantability tness for any particular purpose and non infringement Total Phase and distrib...

Page 17: ...3 Contact Information Total Phase can be found on the Internet at http www totalphase com If you have support related questions please go to the Total Phase website For sales inquiries please contact...

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Total Phase Level Shifter, User Manual

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