LAN9220 datasheet(137/142 Pages) MICROCHIP

137 / 142 page

 2006-2017 Microchip Technology Inc.

DS00002417A-page 137

LAN9220

APPENDIX A:

DATA SHEET REVISION HISTORY

TABLE A-1:

REVISION HISTORY

Revision Level & Date

Section/Figure/Entry

Correction

DS00002417A (03-31-17)

Replaces previous SMSC version Rev. 2.9 (03-01-12)

Note 3-11 on page 39

Changed from: "After any PHY reset, the

application must wait until the "Link Status" bit in

the PHY's "Basic Status Register" (PHY Reg. 1.2)

is set before attempting to transmit or receive

data."

To: "After any PHY reset, the application should

wait until the "Link Status" bit in the PHY's "Basic

Status Register" (PHY Reg. 1.2) is set before

attempting to transmit data, otherwise data written

to the TX FIFO will only be sent when the Link

Status returns to "Up"."

Rev. 2.9

(03-01-12)

Section 5.4.8, "FLOW—

Flow Control Register," on

page 100

Updated Pass Control Frames (bit 2) description to

“When set, the MAC will pass the pause frame to

the host...”

Rev. 2.8

(07-14-11)

Table 2-4, “System and

Power Signals,” on page 11

nLED1 description modified to indicate that the

signal is driven low when operating speed is

100Mbs and is driven high during autonegotiation,

when the cable is disconnected, and during 10

Mbs operation.

Section 5.2.1, "RX FIFO

Ports," on page 67

RX Data FIFO port is aliased to 16 WORD

locations, not 16 DWORD locations.

Section 5.2.2, "TX FIFO

Ports," on page 67

TX Data FIFO port is aliased to 16 WORD

locations, not 16 DWORD locations.

Section 3.6.3.1, "TX

Checksum Calculation," on

page 25

Added note stating TX Checksum calculation

should not be used for UDP packets under IPv6.

Rev. 2.7

(03-15-10)

Section 2.0, "Pin Description

and Configuration," on

page 8

Added pin 1 designator to pin diagram

Section 7.2, "Operating

Conditions**," on page 126

Added note: “Do not drive input signals without

power supplied to the device.”

Section 6.9, "Power

Sequence Timing," on

page 123

Added power sequence timing section

Rev. 2.5

(11-13-08)

All

Fixed various typos

Rev. 2.4

(10-24-08)

All

Fixed various typos

Table 7-1 on page 127 and

Table 7-2 on page 128

Added power consumption values.

Section 7.5, "Worst Case

Current Consumption," on

page 129

Updated with current consumption values for

various VDDVARIO values.

Section 7.6, "DC Electrical

Specifications," on page 130

Added input capacitance and input leakage values.

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