LAN9117 datasheet(44/114 Pages) MICROCHIP | High Performance Single-Chip 10/100 Non-PCI Ethernet Controller

부품명	LAN9117

부품 상세설명	High Performance Single-Chip 10/100 Non-PCI Ethernet Controller

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44 / 114 page

LAN9117

DS00002267A-page 44

 2005-2016 Microchip Technology Inc.

FIGURE 3-15:

TX EXAMPLE 1

TXCommand'A'

TXCommand'B'

Pad DW ORD 1

7-Byte Data Start Offset

10-Byte

EndPa dding

79-BytePa yload

Buf f er End Alignment = 1

Data Start Of fset = 7

First Segment = 1

Last Segment = 0

Buf f er Size = 79

Packet Length = 111

TXCommand'A'

TXCommand'B'

10-Byte

EndOffsetPadding

15-BytePa yload

Buf f er End Alignment = 1

Data Start Of fset = 0

First Segment = 0

Last Segment = 0

Buf f er Size = 15

Packet Length = 111

TXCommand'A'

TXCommand'B'

Buf f er End Alignment = 1

Data Start Of fset = 10

First Segment = 0

Last Segment = 1

Buf f er Size = 17

Packet Length = 111

10-Byte

Data Start Offse t

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 buf f ers are

not transmitted

Data W ritten 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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