AR8236交换机芯片-USB迷|专注于互联网分享

2024年4月12日发(作者：狄苑)

AR8236

6-port low-power,

Fast Ethernet Switch

Technology Overview

Solution Highlights

Atheros ETHOS

technologies provide customers

with industry-leading low power and solution size

to enable Fast or Gigabit Ethernet connectivity in

networking equipment, consumer electronics

and computing platforms. Our PHY, controller and switch solutions support

the IEEE 802.3az standard for Energy Efficient Ethernet, to extend battery-

charges on computing platforms and deliver power-efficiencies in networking

equipment. Atheros also enables incremental power-saving techniques to

offer our customers the very lowest power Ethernet in the industry today. The

unmatched efficiency and advanced carrier-class features of Atheros ETHOS

solutions give customers a competitive edge when designing products for

energy-conscious consumers and businesses.

• Single 3.3V power source with built in LDO to reduce RBOM

• Industry's smallest package 8 mm x 8 mm QFN package

• Support Atheros ETHOS-Designed Green Ethernet (EDGE™) power when

in no link or 10Base-T Idle modes

• Support Spanning Tree Protocol and BPDU handling

• One MII or two RMII MAC interfaces

• 5 Integrated 10/100Base-T PHYs

• Power saving based on cable length and link status

• QoS support with four traffic classes based on port, IEE802.1p,

IPV4 TOS, IPV6 TC and MAC addresses

• Full VLAN support including QinQ and VLAN tag insertion and removal

• IGMP V1/2/3 and MLD V1/2 support with hardware snooping

and fast leave

• Ingress and egress rate limiting, and broadcast storm compression

• Support port mirroring

AR8236 Product Overview

The AR8236 is a fast Ethernet switch solution that offers low power,

very small form factor, enhanced features and competitive RBOM. It is

well-suited for broadband networking products such as xDSL routers,

HomePlug powerline bridges and 5-port switches.

The AR8236 features an internal power-saving mechanism which enables

automatic standby and link detection modes to meet the European Code

of Conduct specification for low-power and on states. The low-power state

provides 80% power saving over “on” state.

Enhanced features such as QoS, VLAN, double-tagging, hardware IGMP

v1/v2/v3 and MLD 1/2 snooping features function without burdening the

host processor. Hardware Looping Detection provides the system CPU with

the option of using these blocks to increase performance and video quality.

The AR8236 supports 9K byte jumbo frames to enable connectivity to

Gigabit-enabled devices that also support jumbo frames.

AR8236 package is a 68-pin QFN, the industry's smallest package for a

switch offering these features. The small package can give a customer the

option of easily fitting the solution into a small housing. The device can

also integrate multiple functions, such as Wi-Fi and VoIP, so that the PCB

size and cost can also be reduced, while maintaining the small housing

made possible by the AR8236’s compact package size.

Single 3.3V power source and built-in LDO regulator further reduces

the RBOM Power Circuit cost compared to other solutions.

AR8236 Architecture

Configuration

Registers

MB/Statistics

Counters

LED

Controller

Configuration

Registers

LED

6 Port FastEthernet Switch Engine

QoS Engine

Lookup Engine

Buffer Memory

VLAN Table

MAC Table Memory

Queue Manager

Bandwidth Control

MDC/MDIO

EEPROM

Port 0

MAC

MII

Port 1

MAC

10/100

Based-T

PHY

Port 2

MAC

10/100

Based-T

PHY

Port 3

MAC

10/100

Based-T

PHY

Port 4

MAC

10/100

Based-T

PHY

Port 5

MAC

10/100

Based-T

PHY

AR8236

6-port low-power

Fast Ethernet Switch

AR8236 Specifications

10/100Base-T IEEE 802.3 compliant

Supports GMII, RGMII, MII and TMII interfaces

RGMII timing modes support internal delay and external delay on both

Rx and Tx paths

Atheros ETHOS-Designed Green Ethernet (EDGE) power-saving modes with

internal automatic DSP power saving scheme

Fully integrated digital adaptive equalizers, echo cancellers, and near end

crosstalk (NEXT) cancellers

All-digital baseline wander correction

Automatic channel swap (ACS)

Automatic MDI/MDIX crossover

Automatic polarity correction

IEEE 802.3u compliant Auto-Negotiation

Jumbo Frame support up to 9K Bytes (full duplex)

Software programmable LED modes

Atheros Cable Diagnostic Test (CDT) Technologies

IEEE 802.3 remote fault indication and fault propagation in fiber mode

IEEE 802.1D spanning tree support

IEEE 802.3x flow control for full duplex and back pressure for half duplex

Support 40 MIB counters per port and Autocast MIB counters to CPU port

Atheros Communications is a global leader in innovative technologies

for wireless and wired communications. Atheros combines its wireless

and networking systems expertise with high-performance radio frequency

(RF), mixed signal and digital semiconductor design skills to provide

highly integrated chipsets that are manufactured on low-cost, standard

complementary metal-oxide semiconductor (CMOS) processes. Atheros

technology is used by a broad base of leading customers, including

networking equipment, computing and consumer device manufacturers.

For more information on the AR8236 or other solutions from Atheros

contact your local representative:

Atheros Communications, s Hong Kong Limited

t +1 408.773.5200t +852 8206.1131

f +1 408.773.9940f +852 8206.1301

Atheros Communications KK-JapanAtheros (Shanghai) Co., Ltd.

t +81 3.5501.4100t +86 21.5108.3626

f +81 3.5501.4129 f +86 21.5027.0100

Atheros Communications Intl, LLC-TaiwanAtheros Korea

t +886 2.8751.6385t +82 31.786.0428

f +886 2.8751.6397

For more information on Atheros and Atheros wireless technology please visit

Atheros, the Atheros logo, ETHOS and the ETHOS logo are registered trademarks of Atheros

Communications, Inc. There is Here is a trademark of Atheros Communications, Inc.

All other trademarks mentioned in this document are the property of their respective owners.

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