Texas Instruments XIO3130 EVM - Manual (Page 11)

1.6 Using the TopHAT Utility
www.ti.com Using the TopHAT Utility
Once flashing has completed, the contents of the EEPROM now contains the data from the .dat file.
However, this data is not yet present in the PCI configuration space of the XIO3130. Once flashing has
finished, WinROM displays a dialog box reminding the user to power cycle the system. Power cycling the
system causes the system PERST signal to toggle, at which time the XIO3130 reads the data from the
EEPROM to the PCI configuration registers. Now the XIO3130 is ready to use in the new operating mode.
TopHAT is a TI-developed utility that allows a user to read or write to various registers in a PCI or PCIe
device. Once the utility has been installed, double click the TopHAT icon to start the program. A dialog
box opens to show the entire PCI bus hierarchy. The XIO3130 will show us as four PCI to PCI bridges.
Look for the TI icon next “PCI/PCI bridge (TI) (see
Figure 1-15 ).
SLLU108 – July 2008 XIO3130 EVM 11
Submit Documentation Feedback