Datasheet

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2.0 Pin Description (Continued)
DP83816
External Reference Interface
Symbol
LQFP Pin
No(s) Dir Description
VREF 40 I Bandgap Reference: External current reference resistor for internal Phy bandgap
circuitry. The value of this resistor is 10KΩ 1% metal film (100 ppm/
o
C) which must
be connected from the VREF pin to analog ground.
No Connects and Reserved
Symbol
LQFP Pin
No(s) Dir Description
NC 34, 42, 43, 36,
37, 84, 85,
124, 125, 126
No Connect
RESERVED 41, 50, 127 These pins are reserved and cannot be connected to any external logic or net.
REGEN 48 Reserved and cannot be connected to any external logic or net..
This pin has an internal weak pull down.
Supply Pins
Symbol
LQFP Pin
No(s) Dir Description
C1 19 S Connect to GND through 10uF and 0.1uF external capacitors in parallel.
IAUXVDD 39, 47 S Connect to isolated Aux 3.3V supply VDD
AUXVDD 9, 21, 27, 33,
56, 58, 137
S Connect to Aux 3.3V supply VDD
PCIVDD 69, 80, 94,
107, 117
S PCI VDD - connect to PCI bus 3.3V VDD
VSS 8, 16, 20, 26,
32, 35, 38, 44,
49, 51, 52, 55,
57, 65, 77, 90,
103, 114, 136
S VSS