3 Connectors
3.1 ADAPTER and ANALYZER
There are two boxed connectors on the right side (Adapter/Analyzer side) of the Level
Shifter Board (Figure 3 ) which are used to connect the board to an Aardvark I C/SPI
Host Adapter, Cheetah SPI Host Adapter, and/or Beagle I C/SPI/MDIO Protocol
Analyzer. These two connectors are cross-connected, so it does not matter which one is
used. In most cases, you will only want to connect a single adapter at a time to the Level
Shifter Board.
Figure 3
: Two boxed connectors for connecting an adapter
and/or analyzer 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.
Alternatively, the second connector can be used to connect a protocol analyzer. For
example, an Aardvark adapter or a Cheetah adapter can be connected to the board
through the
ADAPTER
connector to program a low-voltage memory chip. At the same
time, a Beagle I C/SPI/MDIO Protocol Analyzer can be attached to the
ANALYZER
connector to monitor the bus while the chip is being programmed to ensure that the data
on the bus is correct.
The pinout of the two connectors is described in Figure 4.
Level Shifter Board User Manual v1.01
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