AR8327-AL1A-R datasheet(341/394 Pages) ETC2

341 / 394 page

Atheros Communications, Inc.

AR8327/AR8327N Seven-port Gigabit Ethernet

Switch

•

341

3.9.24

Private_Base_IP_ADDR R

egister

Address 0x0E5C

SFT&HD RST)

R/W

SPECIFIC_PIP_EN

Enable specific public ip for flush and get next

command, valid for NAPT table;

If enabled, according tip index field should be fill in for

the command;

R/W

SPECIFIC_SIP_EN

Enable specific source ip for flush and get next

command, valid for NAPT table;

R/W

SPECIFIC_AGE_EN Enable specific age value for flush and get next

command, valid for NAPT and ARP table;

Use <= as compare way(and >0 is the implied condition)

R/WW

CMD_INDEX

DEPEND:cmd_complete, cmd_index_in[9:0],

a. For NAT table, should fill in index for add one/delete

one/search one command;

b. For NAPT and ARP table, should fill in index for get

next command;

For example, if fill in 0, search from 1, and so on, for napt

table , if fill in 1023, should search from 0, for arp table ,

if fill in 127 , also should search from 0;

c. For NAPT and ARP table, hardware will return entry

index information for ADD ONE/DELETE ONE/

SEARCH ONE command;

7:8

R/O

STATUS

DEPEND: cmd_complete,

6R/O

RESERVED

5:4

R/W

TABLE_SEL

0:NAPT Table

1:Reserved

2:NAT Table

3:ARP Table

3R/O

RESERVED

2:0

R/W

ENTRY_FUNC

0: No Action

1: Flush Entry

2: Add one Entry

3: Delete one Entry

4: Get Next Valid Entry, Not Valid for SIP table and NAT

Table,

5: Search one Entry

a.. For NAPT and ARP table, should fill in key for add

one/delete one /search one;Should fill in the 5-tupe as

search key(Private IP, Private Port Number, Public IP

Public Port number, Protocol),for GRE entry (Private IP,

Call ID, Public IP, Call ID, Protocol), for ARP table,

should fill in Destination IP as search key;

b. For Flush and get next command if need extra

condition, should fill in related content to according

field which defined in entry data structure, and set

according enable control bit define in bits18~bit22;

Bit

R/W

Inital

Value

Mnemonic

Description

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