Si3454-KIT
Confidential Rev. 0.1
9
5.2. Si3454 & Si3459 Monitor Layout
Along the top are monitor controls. On the left side are Si3454 global identification, power information and settings.
Immediately to the right are events and interrupts. On the right side all the Si3454 registers are individually
accessible. The middle section provides a graphical interface to the Si3454 registers. Changes made in either the
register or graphical view are instantly updated in the other view.
5.3. Monitor Control
The primary purpose of the Monitor Control area is to configure and control the operation of the GUI itself.
Figure 10. Monitor Control Area
The user may manually update the GUI by clicking the “Refresh” button. The GUI reads the Si3454 registers and
updates the displayed information.
The user may cause the GUI to automatically update itself at regular intervals by clicking on the “Start polling”
button. Once pressed, the button text changes to “Stop polling”. The green LED symbol on the Polling button
flashes red each time an update occurs. The “Poll delay” text box allows the user to specify the time between
updates. The user may stop automatic updates by clicking on the “Stop polling” button.
The user selects which Si3454 controller to use with the “Slave addr” box. Several Si3454 controllers may be
connected to the I
2
C bus. The “Slave addr” box specifies which of the Si3454 controllers to communicate with. The
GUI transacts with only one Si3454 at a time. The user may dynamically switch the GUI between different Si3454s
by selecting a new address in the “Slave addr” box corresponding to the jumper setting on the Si3454-EVB (J1,
J5).
If the user checks the “CoR” (Clear on Read) check box, then the GUI also reads the Si3454's CoR registers when
updating. If the CoR check box is not checked, then the GUI does not read the CoR registers when updating. The
CoR registers are the Global and the Port Event registers. Reading a CoR register has side effects: It clears that
register and clears the associated event bit in the interrupt register. Consequently, if the CoR check box is checked
while the GUI is polling, then events could come and go without being noticed by the user.
If the user checks the “RoM” (Read on Modify) check box, then the GUI automatically updates itself after the user
modifies a register via the GUI. The GUI automatically shows the effect of any change within a time delay, specified
by the “RoM delay” text box. The RoM behavior is only useful if polling is stopped.
The Monitor Control area has three buttons. The “SW Reset” button resets the Si3454 by setting the “swrst” bit in
the pb_global register. The “Shutdown low priority ports” button turns off all low priority ports by setting the “lowpri”
bit in the pb_global register. The “HW Reset” button causes a reset pulse to be asserted on the Si3454 Reset pin.
This fully resets all Si3454 devices on the board.
Summary of Contents for Si3454-KIT
Page 22: ...Si3454 KIT 22 Confidential Rev 0 1 Figure 21 Evaluation Board Top Side ...
Page 23: ...Si3454 KIT Confidential Rev 0 1 23 Figure 22 Evaluation Board Ground Layer ...
Page 24: ...Si3454 KIT 24 Confidential Rev 0 1 Figure 23 Evaluation Board Power Layer ...
Page 25: ...Si3454 KIT Confidential Rev 0 1 25 Figure 24 Evaluation Board Bottom Side ...
Page 35: ...Si3454 KIT Confidential Rev 0 1 35 Figure 32 Connector Board Bottom Side ...
