82544EI Datasheet, PDF (20/52 Pages) Intel Corporation – Gigabit Ethernet Controller

82544EI Gigabit Ethernet Controller Networking Silicon Datasheet
3.7
3.8
3.8.1
3.8.2
3.8.3
Test Interface Signals
Signal Name
JTAG_TCK
JTAG_TDI
JTAG_TDO
JTAG_TMS
JTAG_TRST#
Type
I
I
O
I
I
Name and Function
JTAG Clock. Input to device
JTAG TDI. Input to device
JTAG TDO. Output from device
JTAG TMS. Input to device
JTAG Reset. Active low reset for JTAG. Terminate this signal
through a resistor to ground. Do not leave unconnected.
Power Supply Connections
Digital Supplies
Signal Name
VDDO
DVDDH
DVDDL
Type
P
P
P
Name and Function
VDDO. 3.3 V I/O power supply.
DVDDH. 1.8 V Digital core power supply.
DVDDL. 1.5 V Digital core power supply.
Analog Supplies
Signal Name
AVDDH
AVDDL
Type
P
P
Name and Function
AVDDH. 3.3 V Analog power supply.
AVDDL. 2.5 V Analog power supply.
Ground and No Connects
Signal Name
GND
NO_CONNECT
Type
P
P
Name and Function
Grounds.
No Connects. Do not connect to these pins to any circuit. Do not
use pullup or pulldown resistors.
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Datasheet