KSZ9567R datasheet(110/233 Pages) MICROCHIP

110 / 233 page

KSZ9567R

DS00002329E-page 110

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5.1.5.7

ALU Table Index 1 Register

The ALU Table Index 0 Register and ALU Table Index 1 Register contain the index values for searching and reading/

writing the address lookup table as specified by the action in the ALU Table Access Control Register. For additional infor-

mation on ALU tables, refer to Section 5.3.1, "Address Lookup (ALU) Table," on page 187.

5.1.5.8

ALU Table Access Control Register

This register provides control and status for searching and reading or writing the ALU Table. The ALU Table Index 0

ALU / Static Address / Reserved Multicast Table Entry 2 Register, ALU / Static Address Table Entry 3 Register, and ALU

/ Static Address Table Entry 4 Register are used for the entry values. Refer to Section 5.3.1, "Address Lookup (ALU)

Table," on page 187 for additional information on ALU tables.

Address:

0x0414 - 0x0417

Size:

32 bits

Bits

Description

Type

Default

31:0

MAC Index [31:0]

These are the lower 32 bits of the MAC addressed used to hash index the

address lookup table. If direct addressing is enabled, then bits [11:0] are

used to directly index the address lookup table.

R/W

0x00000000

Address:

0x0418 - 0x041B

Size:

32 bits

Bits

Description

Type

Default

31:30

RESERVED

00b

29:16

VALID_COUNT

Indicates the total number of valid entries in the table after the search

finishes

0x0000

15:8

RESERVED

0x00

START_FINISH

1 = Start the action defined below

0 = Action finished

R/W, SC

VALID

For search operation. It is cleared when register 0x042F (ALU / Static

Address Table Entry 4 Register) is read.

1 = Indicates that the next valid entry is ready

0 = Next valid entry is not ready

VALID_ENTRY_OR_SEARCH_END

For search operation. It is intended for added convenience when accessing

registers by in-band management (IBA) rather than SPI or I2C. It combines

bits 6 and 7.

1 = Indicates either that the next valid entry is ready, or that the search has

ended.

0 = Neither next valid entry ready nor search ended.

4:3

RESERVED

R/W

00b

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