Maxim Integrated MAX9276ACOAXEVKIT, Manual, Page: 4 / 30

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Evaluate: MAX9276A/MAX9280A MAX9276A/MAX9280A
Evaluation Kits
Serializer and Deserializer Jumper Selection
Blocks
The Serializer Jumper Selection and Deserializer
Jumper Selection blocks list jumpers for the selected
Device ID s and displays the correct shunt positions based
on the conditions selected in the
Controller
group box.
Identify Devices Button
The Identify Devices button causes the GUI to scan the
system and hunt for slave addresses selectable by the
SerDes input address pins. Upon successful communi-
cation, the identified Device ID and the corresponding
jumper lists are displayed on the serializer and deserial-
izer block. It is also possible to manually select a device
from the list in the Device ID drop-down list and enter
the slave address in the Device Address edit box. It is a
good practice to utilize the Identify Devices function and
verify communication with the devices under test (DUTs)
before attempting to Connect .
Figure 9 and Figure 10 show jumper settings on the
SerDes PCBs for coax cable and I
2
C communication
with the USB controller connected to the deserializer
board. Refer the respective deserializer IC data sheet for
detailed configuration information. See Table 1 for PCB
jumper descriptions.
Connect Button
The Connect button opens up the Evaluation Kit win-
dow. The GUI reads the SerDes registers and updates the
register maps for both. Successful register map updates
are indicated by green LED indicators. In case of a com-
munication problem, the LED indicators turn red.
Cancel - Do not Connect Button
The Cancel - Do not Connect button opens the
Evaluation Kit window without attempting to connect to
the on-board microcontroller. Although there will be no
communication with the microcontroller, all functions and
tabs corresponding to the selected Device ID s become
active once there.
Evaluation Kit Window
The
Evaluation Kit
window shown in Figure 2 provides
access to all internal functions of the DUTs by means
of reading and writing registers through different tabs to
allow the user to evaluate various functions of the SerDes.
The
Read All button updates the SerDes’ device maps by
reading the DUT’s internal registers.
The
Serializer group box provides pushbuttons to access
the serializer’s registers. The Read all MAX9279 button
reads register contents from the serializer and updates
the displayed register values. The Load button reads and
updates registers from a previously saved register map
file or saves the existing register values into a new file for
future reference using the Save button.
The Deserializer group box provides pushbuttons
to access the deserializer’s registers. The Read All
MAX9280/80A
button reads register contents from the
deserializer and updates the displayed register values.
The Load button reads and updates registers from a
previously saved register map file or saves the existing
register values into a new file for future reference using
the Save button.
The
Open Configuration
button opens the
Configuration
Settings window for any configuration change. Use
Open Configuration and Connect buttons to go back
and forth between Configuration Settings window and
Evaluation Kit
window.
The Wake Up button applies the register write sequence
described in the IC data sheets to wake the DUTs from
sleep mode.