LAN9220 datasheet(47/142 Pages) MICROCHIP

부품명	LAN9220

상세설명	16-bit Non-PCI Small Form Factor 10/100 Ethernet Controller with Variable Voltage I/O & HP Auto-MDIX Support

PDF	142 Pages

Scroll/Zoom	100%

제조업체	MICROCHIP [Microchip Technology]

홈페이지	http://www.microchip.com

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47 / 142 page

 2006-2017 Microchip Technology Inc.

DS00002417A-page 47

LAN9220

FIGURE 3-21:

TX EXAMPLE 1

TXCommand'A'

TXCommand'B'

Pad DWORD 1

7-Byte Data Start Offset

10-Byte

EndPadding

79-BytePayload

Buf fer End Alignment = 1

Data Start Offset = 7

First Segment = 1

Last Segment = 0

Buf fer Size = 79

Packet Length = 111

TXCommand'A'

TXCommand'B'

10-Byte

EndOffsetPadding

15-BytePayload

Buf fer End Alignment = 1

Data Start Offset = 0

First Segment = 0

Last Segment = 0

Buf fer Size = 15

Packet Length = 111

TXCommand'A'

TXCommand'B'

Buffer End Alignment = 1

Data Start Of fset = 10

First Segment = 0

Last Segment = 1

Buffer Size = 17

Packet Length = 111

10-Byte

Data Start Offset

TX Com m and 'A'

TX Com m and 'B'

TX Com m and 'A'

TX Com m and 'B'

TX Com m and 'A'

TX Com m and 'B'

NOTE: Extra bytes

betw een buff ers are

not transmitted

Data Written to the

Ethernet Controller

Data Passed to the

TX Data FIFO

5-ByteEndPadding

17-BytePayloadData

TXCommand'A'

TXCommand'B'

TXCommand'A'

79-BytePayload

15-BytePayload

17-BytePayload

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