參數(shù)資料
型號(hào): MVTX2802
廠商: Zarlink Semiconductor Inc.
英文描述: Managed 4-Port 1000 Mbps Ethernet Switch
中文描述: 管理4端口1000 Mbps以太網(wǎng)交換機(jī)
文件頁數(shù): 92/154頁
文件大?。?/td> 1936K
代理商: MVTX2802
MVTX2802
Data Sheet
92
Zarlink Semiconductor Inc.
11.9.13.9 Classes WFQ Credit Port G2
Access by CPU only
11.9.13.10 QOSC43 – CREDIT_C0_G2
CPU Address h55A
See table below:
11.9.13.11 QOSC44 – CREDIT_C1_G2
CPU Address h55B
Bits [5:0]:
W0 - Credit register for WFQ. (Default 6’h04)
Bits [7:6]:
Priority type. Define one of the four QoS mode of operation for port 2
(Default 2’00)
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
Option 4 Bit [7:6] = 2’B11
WFQ
Credit for WFQ – Bit [5:0]
W7
W6
W5
W4
W3
W2
W1
W0
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)
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