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參數(shù)資料
| 型號(hào)： | AX88872P |
| 廠商： | ASIX Electronics Corporation |
| 英文描述： | 10/100BASE Dual Speed “Swipeater” Controller |
| 中文描述： | 一個(gè)10/100Base雙速“Swipeater”控制器 |
| 文件頁數(shù)： | 7/36頁 |
| 文件大?。?/td> | 399K |
| 代理商： | AX88872P |
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ASIX ELECTRONICS CORPORATION
7
CONFIDENTIAL
AX88872P Swipeater Controller PRELIMINARY
2.0 Pin Description
The following terms describe the AX88872 pin out:
All pin names with the “/” suffix are asserted low.
I
=
O
=
I/O
=
2.1 RMII interface for repeater ports
2.1.1 Repeater Port 0
Signal Name
Type
SPEED0
I
Input
Output
Input /Output
Pin No.
160
Description
Speed Select :
SPEED0 is not standard RMII signal. This signal is
source from PHY to inform repeater whether 10M or 100M speed is
auto-negotiated. Active for 10Mbps speed is selected depending on
power on configuration.
Carrier Sense/Receive Data Valid :
CRS_DV is asserted
asynchronously on detection of carrier. CRS_DV is asserted by the PHY
when receive medium is non-idle. Loss of carrier shall result in the
desertion of CRS_DV synchronous to the cycle of REF_CLK that
presents the first DI-bits of a nibble on to RXD0[1:0].
Receive Data :
RXD0[1:0] is synchronous to REF_CLK
RXD0[1:0] shall be “00” to indicate idle when CRS_DV is disserted.
Value other than “00” are reserved for out-of-band signaling shall be
ignored by MAC Upon assertion of CRS_DV, PHY shall ensure that
RXD[1:0] = “00” until proper receive decoding takes place
Transmit Enable :
TXEN0 is synchronous to REF_CLK.
TXEN0 indicates that MAC is presenting DI-bits on TXD[1:0] for
transmission. TXEN0 shall be negated prior to the 1st REF_CLK rising
Transmit Data :
TXD0[1:0] shall transition synchronously to
REF_CLK. TXD0[1:0] shall be “00” to indicate idle when TX_EN is
disserted. Value other than “00” are reserved for out-of-band signaling
shall be ignored by PHY. When TX_EN is asserted, TXD[1:0] are
accepted for transmission by PHY
CRS_DV0
I
161
RXD0[1:0]
I
163, 162
TXEN0
O
165
TXD0[1:0]
O
168, 167
2.1.2 Repeater Port 1
Signal Name
SPEED1
Type
I
Pin No.
169
Description
Speed Select :
Please references section 2.1.1 PORT0 description.
CRS_DV1
I
181
Carrier Sense/Receive Data Valid :
Please references section 2.1.1
PORT0 description.
Receive Data :
Please references section 2.1.1 PORT0 description.
RXD1[1:0]
I
183, 182
TXEN1
O
184
Transmit Enable :
Please references section 2.1.1 PORT0 description.
TXD1[1:0]
O
187, 186
Transmit Data :
Please references section 2.1.1 PORT0 description.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AX88873P | 制造商:ASIX 制造商全稱:ASIX 功能描述:10/100BASE Dual Speed 8-Port Repeater |
| AX88875AP | 制造商:ASIX 制造商全稱:ASIX 功能描述:10/100BASE 5-Port Dual Speed Bripeater Controller |
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