參數資料
型號: MVTX2803AG
廠商: ZARLINK SEMICONDUCTOR INC
元件分類: 網絡接口
英文描述: Unmanaged 8-Port 1000 Mbps Ethernet Switch
中文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA596
封裝: 40 X 40 MM, 2.33 MM HEIGHT, MS-034, HSBGA-596
文件頁數: 77/127頁
文件大?。?/td> 1706K
代理商: MVTX2803AG
MVTX2803
Data Sheet
77
Zarlink Semiconductor Inc.
10.6.128 QOSC6C – CREDIT_C1_G7
Serial Interface Address: h583
10.6.129 QOSC6D – CREDIT_C2_G7
Serial Interface Address: h584
Queue
P7
P6
P5
P4
P3
P2
P1
P0
Option 1 Bit [7:6] = 2’B00
DELAY BOUND
BE
Option 2 Bit [7:6] = 2’B01
SP
DELAY BOUND
BE
Option 3 Bit [7:6] = 2’B10
SP
WFQ
Opition 4 Bit [7:6] = 2’B11
WFQ
Credit for WFQ – Bit [5:0]
W
7
W
6
W
5
W
4
W
3
W
2
W
1
W
0
Bits [7]:
Flow control allow during WFQ scheme.
(Default 1’b1)
0 = Not support QoS when the Source port Flow control status is on.
1= Always support QoS)
Bits [6]:
Flow control BE Queue only.
(Default 1’b1)
(0= DO NOT send any frames if the XOFF is on.
(1= the P7-P2 frames can be sent even the XOFF is ON)
Bits [5:0]
W1 - Credit register.
(Default 4’h04)
Fc_allow
Fc_be_only
Lost_ok
Egress- for dest fc_status
Ingress- for src
fc status
0
0
0
Go to BE Queue if (Src FC or Des FC on) otherwise Normal
0
0
1
Go to BE Queue if (Dest FC on) otherwise Normal
1
0
0
(WFQ only) Go to BE Queue if (Src FC on) otherwise BAD
1
0
1
(WFQ only)
Always Normal
X
1
0
Go to BE Queue if (Src FC on)
X
1
1
Always Normal
Bits [5:0]
W2 - Credit register.
(Default 4’h04)
Bits [7:6]:
Reserved
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