AR8327-AL1A-R datasheet(132/394 Pages) ETC2

132 / 394 page

132 • AR8327/AR8327N Seven-port Gigabit Ethernet Switch

Atheros Communications, Inc.

132 • June 2011

COMPANY CONFIDENTIAL

R/W

ARP_REQ_UNI

R/O

RESERVED

R/W

NAT_NOT_FOUND_DRO

P_EN

1'b1: drop

1'b0: to cpu

R/O

RESERVED

R/O

RESERVED

R/W

IGMP_LEAVE_DROP_EN

IGMP/MLD leave packet.

After updated the portmap of ARL(IGMP/

MLD Group address).

If portmap in ARL is not empty,

1'b1: drop this packet.

1'b0: forwarding to IGMP_JOIN_LEAVE_DP

R/W

ARL_UNI_LEAKY_EN

1'b1: use LEAKY_EN bit in ARL table to

control unicast frame leaky VLAN, and ignore

"UNI_LEAKY_EN".

1'b0: ignore LEAKY_EN bit in ARL table to

control unicast frame leaky VLAN. Only use

port base UNI_LEAKY_EN to control unicast

frame leaky VLAN.

R/W

ARL_MULTI_LEAKY_EN

1'b1: use LEAKY_EN bit in ARL table to

control multicast frame leaky VLAN, and

ignore "MULTI_LEAKY_EN".

1'b0: ignore LEAKY_EN bit in ARL table to

control multicast frame leaky VLAN. Only use

port base MULTI_LEAKY_EN to control

multicast frame leaky VLAN.

R/W

MANAGE_VID_VIO_DR

OP_EN

1'b1: management frame should be drop if

vlan violation occur

1'b0: management frame transmit out if vlan

violation occur.

R/W

CPU_PORT_EN

1''b1: cpu is connected to port0; 1'b0: no cpu

connect to switch

If this bit is set to 1'b1, head_en of mac0

should be set to 1'b1.

9R/O

1'b0

RESERVED

R/W

1'b0

PPPOE_REDIRECT_EN

PPPoE discovery frame redirect to cpu enable.

If this bit is set to 1'b1, PPPoE discovery frame

should be redirect to cpu port. If this bit set to

1'b0, PPPoE discovery frame should be

tranmit as normal frame.

7:4

R/W

0xF

MIRROR_PORT_NUM

Port number which packet should be mirrored

to. 4'h0 is port0, 4'h1 is port1,etc.

If value more than 6, no mirror port connected

to switch

Bit

R/W

Inital

Value

Mnemonic

Description

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