LAN83C171 Ver la hoja de datos (PDF) - SMSC -> Microchip

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LAN83C171

EPIC/XF ACPI/PC 97 Compliant Integrated PCI 10/100 Mbps Fast Ethernet Controller

SMSC -> Microchip 

3

2

1

0

Little Endian (PCI) Bus

PCI Bridge Action

0

1

2

7

07

07

Control Register dword transfer:

3

2

1

3

07

Big Endian (PowerPC) Bus

0 Byte Transfer

0

Little Endian (PCI) Bus

PCI Bridge Action

0

7

1

0 15

2

3

8 23

16 31

Big Endian (PowerPC) Bus

24 Byte Transfer

Descriptor/Fragment list dword transfer:

31

3

2

1

0

1

2

31

0

0

Little Endian (PCI) Bus

PCI Bridge Action plus

internal SMC91C120 swap

3

Big Endian (PowerPC) Bus

0 Byte Transfer

FIGURE 2 - LITTLE ENDIAN/BIG ENDIAN BYTE TRANSFER

The number in the box refers to the address of

the byte. The numbers above and below the

boxes refer to the bit number (the bit

ordering increases from LSB to MSB for both

formats although some other documents choose

to label them differently).

13

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