AR8327-AL1A-R datasheet(294/394 Pages) ETC2

294 / 394 page

294 • AR8327/AR8327N Seven-port Gigabit Ethernet Switch

Atheros Communications, Inc.

294 • June 2011

COMPANY CONFIDENTIAL

Table 3-288, “ACL_26 Rate Limit Control Register 1,” on page 294 summerizes the

ACL_RATE_CTRL1_26 Register 1

Table 3-288.

ACL_26 Rate Limit Control Register 1

3.7.138 ACL_RATE_CTRL0_27

Address 0x0AD8

SFT&HW RST

Table 3-289, “ACL_27 Rate Limit Control Register 0,” on page 294 summerizes the

ACL_RATE_CTRL0_27 Register 0

Table 3-289.

ACL_27 Rate Limit Control Register 0

Bit

R/W

Inital

Value

Mnemonic

Description

31:24

R/O

RESERVED

R/W

ACL_BORROW_EN_26

Borrow enable

R/W

ACL_RATE_UNIT_26

1: Packets/ 0: bytes

R/W

ACL_CF_26

Coupling flag for ingress rate limit

R/W

ACL_CM_26

Color mode for ingress rate limit

19:18

R/W

2'b01

ACL_RATE_TIME_SLOT_26

ACL Ingress rate limit control timer

slot.

2'b00: 100us;

2'b01: 1ms

2'b10: 10ms

2'b11: 100ms

Notes: if port rate limit set to less than

96kbps, don't select 100us as time slot

17:15

R/W

ACL_EBS_26

Excess burst size for ingress rate limit

14:0

R/W

0x7FFF

ACL_EIR_26

Ingress Rate Limit for all priority.

Rate is limited to times of 32kbps.

Default 15'h7FFF is for disable rate

limit for ingress. if these bits are set to

15'h0, no frame should be received in

from this port.

Bit

R/W

Inital

Value

Mnemonic

Description

31:18

R/O

RESERVED

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