AR8327-AL1A-R datasheet(147/394 Pages) ETC2

147 / 394 page

Atheros Communications, Inc.

AR8327/AR8327N Seven-port Gigabit Ethernet

Switch

•

147

3.6.25

PORT1_PRI_CTRL Address 0x0670

SFT&HW RST

Table 3-131, “Port 1 Priority Control Register,” on page 147 Port 1 Priority Control Register

Table 3-131.

Port 1 Priority Control Register

9:8

R/W

2’b00

VLAN_MODE_1

802.1Q mode for this port.

2'b00: 802.1Q disable. Use port base

VLAN only.

2'b01: fallback. Enable 802.1Q for all

received frames. Don't discard ingress

membership violation and use the port

base VLAN if the frame's VID isn't

contained in VLAN Table.

2'b10: check. Enable 802.1Q for all

received frames. Don't discard ingress

membership violation but discard

frames which VID isn't contained in

VLAN Table.

2'b11: secure. Enable 802.1Q for all

received frames. Discard frames with

ingress membership violation or whose

VID isn't contained in the VLAN Table.

R/O

RESERVED

6:0

R/W

‘h7D

PORT_VID_MEM_1

Port Base VLAN Member. Each bit

restrict which port can send frames to.

To send frames to port0, bit 16 must be

set to 1'b1, etc. These bits are set to one

after reset except the port's bit. This

prevents frames going out the port

they received in.

Bit

R/W

Inital

Value

Mnemonic

Description

Bit

R/W

Inital

Value

Mnemonic

Description

31:21

R/O

RESERVED

R/W

EG_MAC_BASE_VLAN_EN_1

R/O

RESERVED

R/W

DA_PRI_EN_1

1'b1: DA priority can be used for QOS.

R/W

VLAN_PRI_EN_1

1'b1: VLAN priority can be used for

QOS.

R/W

IP_PRI_EN_1

1'b1: TOS/TC can be used for QOS.

15:8

R/O

RESERVED

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