RELEASED

PM3386

DATASHEET

PMC-1991129

ISSUE 7

DUAL GIGABIT ETHERNET CONTROLLER

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

2

MAC

Media Access Control (MAC): The data link sublayer that is

responsible for transferring data to and from the Physical

Layer.

MII

Media independent Interface (MII): A transparent signal

interface at the bottom of the Reconciliation sublayer.

Next Page

General class of pages optionally transmitted by Auto-

Negotiation able devices following the base page word

negotiation.

Nibble

A group of four data bits. The unit of exchange on the MII.

Packet

The logical unit of data transferred across the POS-PHY Level

3 interface. This generally corresponds to the Data Frame as

defined previously, although the CRC may or may not be

present in the POS-PHY Level 3 egress direction.

Physical Packet

Consists of a Data Frame as defined previously, preceded by

the Preamble and the Start Frame Delimiter, encoded, as

appropriate, for the Physical Layer (PHY) type.

POS-PHY

SATURN compatible Packet over SONET interface

specification for physical layer devices. POS-PHY level 3

defines an interface for bit rates up to and including 2.488

Gbit/s.

PL3

Short hand notation for the POS-PHY Level 3 term.

Odd Parity

The count of the number of 1’s in the data word of n bits. If

there are an odd number of 1s, then the parity bit will be a 0 so

that including the parity bit, the number of 1s are an odd

number

SOF

Start of Frame.

SOP

Start of Packet.