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LAN83C185_03 参数 Datasheet PDF下载

LAN83C185_03图片预览
型号: LAN83C185_03
PDF下载: 下载PDF文件 查看货源
内容描述: 高性能单芯片低功耗10/100以太网物理层收发器 [High Performance Single Chip Low Power 10/100 Ethernet Physical Layer Transceiver]
分类和应用: 以太网局域网(LAN)标准
文件页数/大小: 65 页 / 888 K
品牌: SMSC [ SMSC CORPORATION ]
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High Performance Single Chip Low Power 10/100 Ethernet Physical Layer Transceiver (PHY)  
Datasheet  
Table 3.1 MII Signals (continued)  
PIN NO.  
SIGNAL NAME  
TYPE  
DESCRIPTION  
37  
TX_ER  
(TXD4)  
I
I
MII Transmit Error: When driven high, the 4B/5B encode  
process substitutes the Transmit Error code-group (/H/)  
for the encoded data word. This input is ignored in  
10BaseT operation.  
In Symbol Interface (5B Decoding) mode, this signal  
becomes the MII Transmit Data 4: the MSB of the 5-bit  
symbol code-group.  
48  
33  
CRS  
O
O
Carrier Sense: Indicate detection of carrier.  
RX_DV  
Receive Data Valid: Indicates that recovered and  
decoded data nibbles are being presented on RXD[3:0].  
30  
29  
38  
34  
RXD2  
RXD3  
O
O
O
O
Receive Data 2: Bit 2 of the 4 data bits that sent by the  
PHY in the receive path.  
Receive Data 3: Bit 3 of the 4 data bits that sent by the  
PHY in the receive path.  
TX_CLK  
RX_CLK  
Transmit Clock: 25MHz in 100Base-TX mode. 2.5MHz in  
10Base-T mode.  
Receive Clock: 25MHz in 100Base-TX mode. 2.5MHz in  
10Base-T mode.  
Table 3.2 LED Signals  
TYPE  
PIN NO.  
SIGNAL NAME  
DESCRIPTION  
16  
SPEED100  
O
LED1 – SPEED100 indication. Active indicates that the  
selected speed is 100Mbps. Inactive indicates that the  
selected speed is 10Mbps.  
17  
19  
20  
LINKON  
O
O
O
LED2 – LINK ON indication. Active indicates that the Link  
(100Base-TX or 10Base-T) is on.  
ACTIVITY  
FDUPLEX  
LED3 – ACTIVITY indication. Active indicates that there  
is Carrier sense (CRS) from the active PMD.  
LED4 – DUPLEX indication. Active indicates that the PHY  
is in full-duplex mode.  
Table 3.3 Management Signals  
TYPE DESCRIPTION  
PIN NO.  
SIGNAL NAME  
26  
MDIO  
MDC  
IO  
Management Data Input/OUTPUT: Serial management  
data input/output.  
27  
I
Management Clock: Serial management clock.  
Rev. 0.6 (12-12-03)  
6
SMSC LAN83C185  
DATASHEET