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參數(shù)資料
| 型號： | TC9204-DS-R05 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 4-Port 10/100/1000 Smart Ethernet Switch |
| 中文描述： | 4端口10/100/1000智能以太網(wǎng)交換機 |
| 文件頁數(shù)： | 31/49頁 |
| 文件大?。?/td> | 1549K |
| 代理商： | TC9204-DS-R05 |
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TC9204M
Preliminary Data Sheet
10.3.4
Flow Control Register
-
Address: 2Eh, 2Fh
Confidential.
Copyright
2003, IC Plus Corp.
31/49
July 29, 2003
TC9204M-DS-R05
7 6 5 4 3 2 1 0
FullBP
BPMaxCol
BPSkip1
CarrBP
DisFwPres
DisBPBk
FrcFdxFC
FrcFdxFCGb
DirFCAdr
not used
FlowControlReg
15 14 13 12 11 10 9 8
Bit(s)
0
6 - 1
7
8
9
10
11
12
13
15 - 14
FullBP
Field
Description
FullBP
BPMaxCol
BPSkip1
CarrBp
DisFwPres
DisBPBk
FrcFdxFC
FrcFdxFCGb
DirFCAdr
not used
Full backpressure
Maximum number of collisions for backpressure
Skip one packet for backpressure operation
Carrier backpressure
Disable forwardpresure
Disable backoff during backpressure
Force full duplex flow control in 10/100 Mbps
Force full duplex flow control in 1000 Mbps
Direct flow control addressing
not used
In normal operation the backpressure process is executed until flow control
condition disappears or until the time limit for backpressure is reached. This limit is
based on EEPROM’s
BPTimeValue
register. When this configuration is ‘0’ the
backpressure process will be also limited from exceeding the value contained in
BPMaxCol
field.
Default value is its corresponding
FullBP
pin value.
Specifies the number of consecutive collisions that will determine TC9204M to quit
backpressure (see the setting above). Default is ‘011100’ (28).
If
FullBP
setting is configured to ‘0’ and a number of
BPMaxCol
collisions is reached,
the MAC will ensure receiving the next packet without colliding it if this bit is set to ‘1’,
after which will resume the backpressure. Otherwise it will completely quit
backpressure waiting for a new XOFF command from internal flow control entity.
Default is ‘0’.
Setting this bit to ‘1’ will enable carrier-based backpressure, otherwise only
collision-based backpressure is executed. Default value is its corresponding
CarrBp
pin value.
BPMaxCol
BPSkip1
CarrBp
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| TC9204M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Port 10/100/1000 Smart Ethernet Switch |
| TC9205F | 制造商:Panasonic Industrial Company 功能描述:IC |
| TC9205M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5-Port 10/100/1000 Smart Ethernet Switch |
| TC9205M-DS-R02 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5-Port 10/100/1000 Smart Ethernet Switch |
| TC9205M-DS-R03 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5-Port 10/100/1000 Smart Ethernet Switch |
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