LAN9220 datasheet(28/142 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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28 / 142 page

LAN9220

DS00002417A-page 28

 2006-2017 Microchip Technology Inc.

FIGURE 3-9:

FIFO ACCESS BYTE ORDERING

BIG ENDIAN

(FPORTEND = 1 for Data FIFO port access on addresses 00h-3Ch)

AND/OR (FSELEND = 1 for Data FIFO direct access when FIFO_SEL=1)

A[1] = 0

A[1] = 1

MSB

LSB

HOST DATA BUS

INTERNAL FIFO ORDER

A[1] = 0

A[1] = 1

MSB

LSB

HOST DATA BUS

INTERNAL FIFO ORDER

WORD_SWAP != FFFF_FFFFh

LITTLE ENDIAN

(FPORTEND = 0 for Data FIFO port access on addresses 00h-3Ch)

AND/OR (FSELEND = 0 for Data FIFO direct access when FIFO_SEL=1)

BIG ENDIAN

(FPORTEND = 1 for Data FIFO port access on addresses 00h-3Ch)

AND/OR (FSELEND = 1 for Data FIFO direct access when FIFO_SEL=1)

A[1] = 0

A[1] = 1

MSB

LSB

HOST DATA BUS

INTERNAL FIFO ORDER

A[1] = 0

A[1] = 1

MSB

LSB

HOST DATA BUS

INTERNAL FIFO ORDER

WORD_SWAP = FFFF_FFFFh

LITTLE ENDIAN

(FPORTEND = 0 for Data FIFO port access on addresses 00h-3Ch)

AND/OR (FSELEND = 0 for Data FIFO direct access when FIFO_SEL=1)

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