ADLINK cPCI-6870 - Manual (Page 57)

Board Interfaces 43
cPCI-6870
Clear CMOS Switch (SW4)
Press switch SW4 to clear the CMOS and reset the CMOS val-
ues to default.
PMC Clock Switch (SW1)
Switch SW1 sets the PCI bus clock of the two PMC sites. All
are set OFF by default.
Table 4-26: PMC Clock Switch Settings
PMC V(I/O) Switch (SW5)
Switch SW5 sets the signaling voltage of the two PMC sites.
Table 4-27: PMC V(I/O) Switch Settings
Mode 1 2 3 4
PCI-X 133MHz OFF OFF OFF OFF
PCI-X 100MHz OFF OFF OFF ON
PCI-X 66MHz OFF OFF ON OFF
PCI 66MHz ON ON ON OFF
PCI 33MHz ON OFF ON OFF
Mode 1 2 3 4
PMC V(I/O) = 5V ON ON OFF OFF
PMC V(I/O) = 3.3V OFF OFF ON ON