LAN9211 datasheet(56/147 Pages) SMSC

Il numero della parte	LAN9211

Spiegazioni elettronici	High-Performance Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX Support

PDF	147 Pages

Scroll/Zoom	100%

Produttore elettronici	SMSC [SMSC Corporation]

Homepage	http://www.smsc.com

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High-Performance Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX Support

Datasheet

Revision 2.9 (03-01-12)

SMSC LAN9211

DATASHEET

Figure 3.21, "TX Example 1" illustrates the TX command structure for this example, and also shows

how data is passed to the TX data FIFO.

Figure 3.21 TX Example 1

TXCommand'A'

TXCommand'B'

Pad DWORD 1

7-Byte Data Start Offset

10-Byte

EndPadding

79-BytePayload

Buffer End Alignment = 1

Data Start Offset = 7

First Segment = 1

Last Segment = 0

Buffer Size = 79

Packet Length = 111

TXCommand'A'

TXCommand'B'

10-Byte

EndOffsetPadding

15-BytePayload

Buffer End Alignment = 1

Data Start Offset = 0

First Segment = 0

Last Segment = 0

Buffer Size = 15

Packet Length = 111

TXCommand'A'

TXCommand'B'

Buffer End Alignment = 1

Data Start Offset = 10

First Segment = 0

Last Segment = 1

Buffer Size = 17

Packet Length = 111

10-Byte

Data Start Offset

TX Com mand 'A'

TX Com mand 'B'

TX Com mand 'A'

TX Com mand 'B'

TX Com mand 'A'

TX Com mand 'B'

NOTE: Extra bytes

betw een buffers 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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