TNETE2008

OctalPHY

EIGHT 10BASE-T PHYSICAL-LAYER INTERFACES

SPWS042B – DECEMBER 1997 – REVISED JUNE 1998

9

POST OFFICE BOX 655303

functional description

Figure 3 is a simplified diagram of one of the eight TNETE2008 PHY interfaces. The diagram indicates the

functionality of each PHY but is not a complete representation of the PHY structure or operation.

Receiver

1

0

Carrier Sense

Intelligent

Squelch

Link-Pulse

Detector

Autonegotiation

Wave-Shaping

Filter

Disable

RCVP

Manchester

Encoder

Duplex

Register

Digital

PLL

Manchester

Decoder

Elastic

Buffer

Clock

Generator

D-to-A

Converter

Line

Driver

Link-Pulse

Generator

Collision

Generator

RCVN

CLK

LOOPBACK

IFTXD

IFTXEN

IFFORCEHD

IFDUPLEX

IFRXD

IFCRS

IFCLK

XMTP

XMTN

IFCOL

IFLINK

Watchdog

Timer

Figure 3. Block Diagram (x8)