AR8327-AL1A-R datasheet(84/394 Pages) ETC2

84 / 394 page

84 • AR8327/AR8327N Seven-port Gigabit Ethernet Switch

Atheros Communications, Inc.

84 • June 2011

COMPANY CONFIDENTIAL

Table 3-37 summarizes the PORT2_HEADER_CTRL Register.

3.2.35

PORT3_HEADER_CTRL

Address 0x00A8

SFT&HW RST

Table 3-38 summarizes the PORT3_HEADER_CTRL Register.

Table 3-37.

PORT 2 Header Control Register

Bit

R/W

Inital

Value

Mnemonic

Description

31:6

R/O

RESERVED

R/W

IPG_DEC_EN_2

1'b1: mac will decrease two bytes of IPG when

send out frame and receive check.

1'b0: normal IPG 96 bit time

R/W

MAC_LOOP_BACK_2

1'b1: enable mac loop back at gmii/mii interface

3:2

R/W

RX_HEADER_MODE_2

0x0:no header;

0x1: only management with header, must be

under 4 bytes header mode.

0x2: all frame with header;

0x3: reserved

1:0

R/W

TX_HEADER_MODE_2

0x0:no header;

0x1: only management with header; must be

under 4 bytes header mode.

0x2: all frame with header;

0x3: reserved

Table 3-38.

PORT 3 Header Control Register

Bit

R/W

Inital

Value

Mnemonic

Description

31:6

R/O

RESERVED

R/W

IPG_DEC_EN_3

1'b1: mac will decrease two bytes of IPG when

send out frame and receive check.

1'b0: normal IPG 96 bit time

R/W

MAC_LOOP_BACK_3

1'b1: enable mac loop back at gmii/mii interface

3:2

R/W

RX_HEADER_MODE_

0x0:no header;

0x1: only management with header, must be

under 4 bytes header mode.

0x2: all frame with header;

0x3: reserved

1:0

R/W

TX_HEADER_MODE_

0x0:no header;

0x1: only management with header; must be

under 4 bytes header mode.

0x2: all frame with header;

0x3: reserved

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