AR8327-AL1A-R datasheet(301/394 Pages) ETC2

301 / 394 page

Atheros Communications, Inc.

AR8327/AR8327N Seven-port Gigabit Ethernet

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301

3.7.148 PORT0_ING_RATE_CTRL0

Address 0x0B00

SFT&HW RST

Table 3-299, “Port 0 Ingress Rate Limit Control Register 0,” on page 301 summerizes the

PORT0_ING_RATE_CTRL0 Register 0

Table 3-299.

Port 0 Ingress Rate Limit Control Register 0

17:15

R/W

ACL_EBS_31

Excess burst size for ingress rate limit

14:0

R/W

0x7FFF

ACL_EIR_31

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

Bit

R/W

Inital

Value

Mnemonic

Description

31:24

R/W

‘h18

ADD_RATE_BYTE_0

Byte number should be added to frame

when calculate rate limit.

Default is 24 bytes for IPG, preamble,

crc and SFD.

23:22

R/W

2’b01

ING_RATE_C_TIME_SLOT_0

Committed 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.

R/O

RESERVED

R/W

ING_RATE_MODE_0

1: one two-rate three-color

0: two single rate

19:18

R/O

RESERVED

17:15

ING_CBS_0

Committed burst size for ingress rate

limit

14:0

R/W

0x7FFF

ING_CIR_0

Committed 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.

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