AR8327-AL1A-R datasheet(309/394 Pages) ETC2

309 / 394 page

Atheros Communications, Inc.

AR8327/AR8327N Seven-port Gigabit Ethernet

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309

SFT&HW RST

Table 3-308, “Port 3 Ingress Rate Limit Control Register 0,” on page 309 summerizes the

PORT3_ING_RATE_CTRL0 Register 0

Table 3-308.

Port 3 Ingress Rate Limit Control Register 0

3.7.158 PORT3_ING_RATE_CTRL0

Address 0x0B34

SFT&HW RST

Table 3-309, “Port 3 Ingress Rate Limit Control Register 1,” on page 310 summerizes the

PORT3_ING_RATE_CTRL0 Register 1

Bit

R/W

Inital

Value

Mnemonic

Description

31:24

R/W

‘h18

ADD_RATE_BYTE_3

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_3

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_3

1: one two-rate three-color

0: two single rate

19:18

R/O

RESERVED

17:15

R/W

ING_CBS_3

Committed burst size for ingress rate

limit

14:0

R/W

0x7FFF

ING_CIR_3

Committed Ingress Rate Limit for all

priority.

Rate is limited to times of 32kbps.

Default 15'h7FFF is for disable rate

limit for egress priority 2. if these bits

are set to 15'h0, no frame should be

received in from this port.

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