AR8327-AL1A-R datasheet(252/394 Pages) ETC2

252 / 394 page

252 • AR8327/AR8327N Seven-port Gigabit Ethernet Switch

Atheros Communications, Inc.

252 • June 2011

COMPANY CONFIDENTIAL

3.7.77

PORT3_FLOW_THD

Address 0x09BC

SFT&HW RST

Table 3-228, “Port 3 Flow Control Threshold Control Register,” on page 252 summerizes the

PORT3_FLOW_THD Register

Table 3-228.

Port 3 Flow Control Threshold Control Register

3.7.78

PORT4_FLOW_THD

Address 0x09C0

SFT&HW RST

Table 3-229, “Port 4 Flow Control Threshold Control Register,” on page 252 summerizes the

PORT4_FLOW_THD Register

Table 3-229.

Port 4 Flow Control Threshold Control Register

Bit

R/W

Inital

Value

Mnemonic

Description

31:24

R/O

RESERVED

23:16

R/W

'h3A

PORT_XON_THRES_3

Port base transmit on threshold. When

block memory used by one port less

than this value, mac would send out

pause off frame, and link partner will

start transmit frame out.

15:8

R/O

RESERVED

7:0

R/W

'h4A

PORT_XOFF_THRES_3

Port base transmit off threshold. When

block memory used by one port more

than this value, mac would send out

pause on frame, and link partner will

stop transmit frame out.

Bit

R/W

Inital

Value

Mnemonic

Description

31:24

R/O

RESERVED

23:16

R/W

'h3A

PORT_XON_THRES_4

Port base transmit on threshold. When

block memory used by one port less

than this value, mac would send out

pause off frame, and link partner will

start transmit frame out.

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