AR8327-AL1A-R datasheet(98/394 Pages) ETC2

98 / 394 page

98 • AR8327/AR8327N Seven-port Gigabit Ethernet Switch

Atheros Communications, Inc.

98 • June 2011

COMPANY CONFIDENTIAL

3.4.3

NORMALIZE_LEN_CTRL

Address 0x0208

SFT&HW RST

Table 3-63 summarizes the NORMALIZE_LEN_CTRL Register

Table 3-63.

Normalize Length Control Register

3.4.4

FRAM_ACK_CTRL0

Address 0x00210

SFT&HW RST

Table 3-64 summarizes the FRAM_ACK_CTRL0 Register 0

R/W

UDP_LEN_DROP_EN

1'b1: frame with UDP length check

error should be dropped.

R/W

UDP_SAME_PORT_DROP_EN

1'b1: UDP frame with SP equal to DP

should be dr opped.

R/W

TCP_OPTION_DROP_EN

1'b1: frame with SYN=0 and IP header

larger than 20 byte, should be dropped.

R/W

TCP_URG0_PTR_ERR_DROP_EN 1'b1: frame with URG=0 but pointer

not zeor should be dropped.

R/W

TCP_CHECKSUM_DROP_EN

1'b1: frame with TCP checksum error

should be dropped.

R/W

TCP_URG1_ACK0_DROP_EN

1'b1: frame with URG=1 & ACK=0

should be dropped.

Bit

R/W

Inital

Value

Mnemonic

Description

Bit

R/W

Inital

Value

Mnemonic

Description

31:30

R/O

RESERVED

29:16

R/W

0x40

ICMPV6_MAX_LEN

Defined the max IP payload lenght of

ICMPv6 frame

15:14

R/O

RESERVED

13:0

R/W

0x40

ICMPV4_MAX_LEN

Defined the max IP payload lenght of

ICMPv4 frame

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