82551IT Datasheet, PDF (19/102 Pages) Intel Corporation – Fast Ethernet PCI Controller

Networking Silicon — 82551IT
4.6
Power and Ground Signals
Table 9. Power and Ground Signals
Symbol
Type
Name and Function
VCC
DPS
VCCR
APS
VSSPL,
VSSPP,
DPS
VSSPT, VSS
NC
DPS
Digital 3.3 V Power. The VCC pins should be connected to the main
digital power supply. This is 3.3 V_AUX in systems with an auxiliary
power supply and PCI power in systems without an auxiliary power
supply. The power source is configured through the FLA[1]/AUXPWR
pin.
Analog Power. These pins should be connected directly to VCC.
Digital Ground. These pins should be connected to the main digital
ground plane.
No Connect. These pins should not be connected to any circuit. Pull-
up or pull-down resistors should not be used.
Datasheet
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