Clear cmos switch (sw4), Pmc clock switch (sw1), Pmc v(i/o) switch (sw5) – ADLINK cPCI-6870 User Manual
Page 57
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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
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