AR8031 查看數據表（PDF） - Unspecified

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AR8031

AR8031 Integrated 10/100/1000 Mbps Ethernet Transceiver

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Revision History

Date

2010/11/15

2011/4/14

2011/8/29

Revsion Details

First draft

General Description

n Overall update for revision from MPW to mass production

n Block diagram: add SYNC-E and 1588v2 block

Pin Descriptions

n RXD [3:0], RX_DV pin damping resistor 22ohm requirement is deleted.

n RST pin type change from "IH" to "I,” mass production chip does not have

internal weak PU

n INT, WOL_INT from "I/O active high" change to "D active low" need an

external PU

n Power on strapping LED_ACT from "1.1V/1.2V selection" to "PHY

ADDRESS [2]".

n LED_ACT/LED_LINK1000/LED_LINK10_100 from internal weak "PD"

change to internal weak "PU".

Functional Descriptions

n 2.2.4 Mode definition adds work mode"1011" combo mode.

Electrical Characteristics

n 3.1 Absolute Maximum Rating: update CDM max

n 3.2 Recommeded Operating Condition: update Tj max

n 3.7 Clock Characteristics: update values in Table 3-13 Recommended Crystal

Parameters

n Update Table 3-11 MDIO AC Characteristic to add tmdelay row

Register

n 4.2.29LED Control (0x18): update register bit definitions

n 4.2.30 Manual LED Override (0x19): new register

Topside Marking

n Add topside marking illustration

Electrical Characteristics

n 3.2 Recommended Operation Conditions: delete DVDDL/AVDDL, JA; add

VDDH_REG, JT, AVDDL/DVDDL (industrial and commercial); add

thermal conditions

n 3.6 change title from MDIO DC Charateristics to MDIO/MDC DC...; change

VIH min value and VIL max value

n 3.7 table 3-14: change Jitterpk-pk max value to 100

n 3.11 Digital pin design guide (new)

Registers

n 4.2.3 Status Register – Copper page, change bit[8] reset value to always 1

n 4.3.4 Hib control and auto-neg test register: change bit[12], [6:5] to reserved

n 4.3.5 External loopback selection, change bit[0] to R/W

n 4.3.7 Power saving control (new)

n 4.4.75 SGMII Control register 2 (new)

n 4.4.76 SGMII Control register 3(new)

n 4.4.78 1588 RTC clock select register (new)

Revision

0.1

1.0

1.1

Atheros Communications, Inc.

COMPANY CONFIDENTIAL

AR8031 Integrated 10/100/1000 Mbps Ethernet Transceiver • 3

August 2011 • 3

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