Networking Silicon — 82540EP

3.6Test Interface Signals

Symbol

Type

Name and Function

 

 

 

JTAG_TCK

I

JTAG Clock.

 

 

 

JTAG_TDI

I

JTAG TDI.

 

 

 

JTAG_TDO

O

JTAG TDO.

 

 

 

JTAG_TMS

I

JTAG TMS.

 

 

 

JTAG_

I

JTAG Reset. This is an active low reset signal for JTAG. This signal should be

TRST#

terminated using a pull-down resistor to ground. It must not be left unconnected.

 

 

 

 

TEST

I

Factory Test Pin.

 

 

 

CLKVIEW

O

Clock View. Output for GTX_CLK and RX_CLK during IEEE PHY conformance testing.

The clock is selected by register programming.

 

 

 

 

 

3.7Power Supply Connections

3.7.1Digital Supplies

Symbol

Type

 

Name and Function

 

 

 

 

VDDO

P

3.3

V I/O Power Supply.

 

 

 

 

DVDD

P

1.5

V Digital Core Power Supply.

 

 

 

 

3.7.2Analog Supplies

Symbol

Type

Name and Function

 

 

 

AVDDH

P

3.3 V Analog Power Supply.

 

 

 

AVDDL

P

2.5 V Analog Power Supply.

 

 

 

Datasheet

15

Page 21
Image 21
Intel 82540EP manual Test Interface Signals, Power Supply Connections, Digital Supplies, Analog Supplies