High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface

Datasheet

MII

Media Independent Interface

 

 

MIIM

Media Independent Interface Management

 

 

MIL

MAC Interface Layer

 

 

MLD

Multicast Listening Discovery

 

 

MLT-3

Multi-Level Transmission Encoding (3-Levels). A tri-level encoding method

 

where a change in the logic level represents a code bit “1” and the logic

 

output remaining at the same level represents a code bit “0”.

 

 

msb

Most Significant Bit

 

 

MSB

Most Significant Byte

 

 

NRZI

Non Return to Zero Inverted. This encoding method inverts the signal for a

 

“1” and leaves the signal unchanged for a “0”

 

 

N/A

Not Applicable

 

 

NC

No Connect

 

 

OUI

Organizationally Unique Identifier

 

 

Outbound

Refers to data output from the LAN9312 to the host

 

 

PIO cycle

Program I/O cycle. An SRAM-like read or write cycle on the HBI.

 

 

PISO

Parallel In Serial Out

 

 

PLL

Phase Locked Loop

 

 

PTP

Precision Time Protocol

 

 

RESERVED

Refers to a reserved bit field or address. Unless otherwise noted, reserved

 

bits must always be zero for write operations. Unless otherwise noted, values

 

are not guaranteed when reading reserved bits. Unless otherwise noted, do

 

not read or write to reserved addresses.

 

 

RTC

Real-Time Clock

 

 

SA

Source Address

 

 

SFD

Start of Frame Delimiter - The 8-bit value indicating the end of the preamble

 

of an Ethernet frame.

 

 

SIPO

Serial In Parallel Out

 

 

SMI

Serial Management Interface

 

 

SQE

Signal Quality Error (also known as “heartbeat”)

 

 

SSD

Start of Stream Delimiter

 

 

UDP

User Datagram Protocol - A connectionless protocol run on top of IP

 

networks

 

 

UUID

Universally Unique IDentifier

 

 

WORD

16-bits

 

 

SMSC LAN9312

17

Revision 1.4 (08-19-08)

 

DATASHEET