User Manual

FUSB307BGEVB
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11
Register Map
The “Register Map” tab enables reading and writing any
value to any register in the FUSB307B. When performing
a register write, the selected register/registers is/are read
back again to confirm the write action. So the write button
actually performs a write and then a read operation.
The “Device Poll” option tells the GUI to automatically
check the DEVICE_ID register for the I
2
C address selected
in the “Addr” pull down box and display the “Device
Connected ...” or “ No Device” message in the lower right
corner of the GUI.
The “Register Poll” option tells the GUI to constantly
poll the FUSB307B registers and update the register
values. This should be used only for debugging since it can
disrupt the timing operations of the firmware.
Figure 13. Register Map Tab
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