Figure 8.1 little endian byte ordering, Figure 8.2 big endian byte ordering, Datasheet – SMSC LAN9312 User Manual

Page 100: Bit big endian

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High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface

Datasheet

Revision 1.4 (08-19-08)

100

SMSC LAN9312

DATASHEET

Data path operations for the supported endian configurations are illustrated in Figure 8.1, "Little Endian
Byte Ordering" and Figure 8.2, "Big Endian Byte Ordering".

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Figure 8.1 Little Endian Byte Ordering

Figure 8.2 Big Endian Byte Ordering

32-BIT LITTLE ENDIAN

(END_SEL = 0)

0

1

2

3

0

1

2

3

0

7

8

15

16

23

31

24

0

7

8

15

16

23

31

24

MSB

LSB

INTERNAL ORDER

HOST DATA BUS

32-BIT BIG ENDIAN

(END_SEL = 1)

0

1

2

3

0

7

8

15

16

23

31

24

3

2

1

0

0

7

8

15

16

23

31

24

MSB

LSB

HOST DATA BUS

INTERNAL ORDER

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