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參數(shù)資料
| 型號(hào)： | E-110 |
| 廠(chǎng)商： | LSI Corporation |
| 英文描述： | 100BASE-T Fast Ethernet Core(100BASE-T快速以太網(wǎng)處理芯片 Fast Ethernet Core) |
| 中文描述： | 100兆- T的快速以太網(wǎng)核心（100兆- T的快速以太網(wǎng)處理芯片快速以太網(wǎng)核心） |
| 文件頁(yè)數(shù)： | 53/130頁(yè) |
| 文件大?。?/td> | 770K |
| 代理商： | E-110 |
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MAC Core Signals
2-21
RTRYL is synchronous with the rising edge of MTXC and
may be asserted or deasserted when the transmit engine
is idle (either during reset or when no packet is being
transmitted).
TBOFF_SEL
Stop Backoff
The TBOFF_SEL input signal controls whether or not the
E-110 core uses the binary exponential backoff algorithm
during collisions. If the TBOFF_SEL signal is asserted,
the E-110 core transmits a jam pattern after a collision
and tries to retransmit after timing out for the IPG value.
In this case, the binary exponential backoff algorithm is
not used.
Input
If the TBOFF_SEL signal is deasserted, the E-110 core
implements the binary exponential backoff algorithm. The
E-110 core stops sending packet data, sends a jam pat-
tern, and tries to transmit again. The amount of time the
E-110 core waits between successive retries is 512 bit
times
1
x R, where R is a random integer between 0 and
2
k
1. K is the retry counter value, which can range from
1 to 10.
The host must change the TBOFF_SEL signal synchro-
nously with the rising edge of MTXC clock. The effect of
this signal is not synchronized on a packet boundary
within the E-110 core, so changing the state of the signal
during a packet transmission can cause unexpected
results.
2.1.6 Statistics Vector to Host Signals
The statistics vector signal lines from the MAC are listed below. All
signals are active HIGH unless otherwise indicated. Signal direction is
with respect to the MAC.
RSV[25:0]
Receive Statistics Vector
The RSV[25:0] signals contain the receive statistics vec-
tor and are updated on the falling edge of RSVP_L. The
statistics vector is issued at the end of any minimally
qualified receive event A minimally qualified receive
event occurs when the MAC receives at least one nibble
of data beyond a valid preamble and SFD.
Output
1. 512 bit times equals one slot time.
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| E110.000 | 功能描述:折皺器 Ferrule Crimper 26-10 AWG RoHS:否 制造商:Hirose Connector 類(lèi)型: 描述/功能:Cable and Shield Crimper |
| E110.005 | 功能描述:折皺器 UNIV FERRULE CRIMPER 20-8 AWG 0.5-10 RoHS:否 制造商:Hirose Connector 類(lèi)型: 描述/功能:Cable and Shield Crimper |
| E110.010 | 功能描述:折皺器 FERRULE CRIMPER 8-6AWG RoHS:否 制造商:Hirose Connector 類(lèi)型: 描述/功能:Cable and Shield Crimper |
| E110.015 | 功能描述:折皺器 FERRULE CRIMPER 4-2AWG 25-35 RoHS:否 制造商:Hirose Connector 類(lèi)型: 描述/功能:Cable and Shield Crimper |
| E110.020 | 功能描述:折皺器 FERRULE CRIMPER 1 AWG 50 RoHS:否 制造商:Hirose Connector 類(lèi)型: 描述/功能:Cable and Shield Crimper |
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