參數(shù)資料
型號(hào)： AM79C873KCW
廠商： ADVANCED MICRO DEVICES INC
元件分類： 網(wǎng)絡(luò)接口
英文描述： NetPHY⑩ -1 10/100 Mbps Ethernet Physical Layer Single-Chip Transceiver with 100BASE-FX Support
中文描述： DATACOM, ETHERNET TRANSCEIVER, PQFP100
封裝： PLASTIC, QFP-100
文件頁(yè)數(shù)： 20/44頁(yè)
文件大?。?/td> 543K
代理商： AM79C873KCW
20
Am79C873
P R E L I M I N A R Y
Basic Mode Control Register (BMCR) -
Register 0
Bit
Bit Name
Default
Description
0.15
Reset
0, RW/SC
Reset
:
1=Software reset
0=Normal operation
When set this bit configures the PHY status and control registers to their
default states. This bit will return a value of one until the reset process is
complete.
0.14
Loopback
0, RW
Loopback
:
Loopback control register
1=Loopback enabled
0=Normal operation
When in 100M operation is selected, setting this bit will cause the
descrambler to lose synchronization. A 720ms “dead time” will occur
before any valid data appears at the MII receive outputs.
0.13
Speed Selection
1, RW
Speed Select
:
1=100 Mbps
0=10 Mbps
Link speed may be selected either by this bit or by Auto-Negotiation if bit
12 of this register is set. When Auto-Negotiation is enabled, this bit will
return Auto-Negotiation link speed.
0.12
Auto-Negotiation
Enable
1, RW
Auto-Negotiation Enable
:
1= Auto-Negotiation enabled:
0= Auto-Negotiation disabled:
When auto-Negotiation is enabled bits 8 and 13 will contain the Auto-
Negotiation results. When Auto-Negotiation is disabled bits 8 and 13 will
determine the duplex mode and link speed.
0.11
Power Down
0, RW
Power Down
:
1=Power Down
0=Normal Operation
Setting this bit will power down the NetPHY-1 device with the exception of
the crystal oscillator circuit.
0.10
Isolate
(PHYAD=
00000),
RW
Isolate
:
1= Isolate
0= Normal Operation
When this bit is set the data path will be isolated from the MII interface.
TX_CLK, RX_CLK, RX_DV, RX_ER, RXD[3:0], COL and CRS will be
placed in a high impedance state. The management interface is not
effected by this bit. When the PHY Address is set to 00000 the isolate bit
will be set upon power-up/reset.
相關(guān)PDF資料
PDF描述
AM79C874VI NetPHY-1LP Low Power 10/100-TX/FX Ethernet Transceiver
Am79C874 NetPHY-1LP Low Power 10/100-TX/FX Ethernet Transceiver
AM79C874VC NetPHY-1LP Low Power 10/100-TX/FX Ethernet Transceiver
AM79C875 NetPHY⑩ 4LP Low Power Quad 10/100-TX/FX Ethernet Transceiver
AM79C875KC NetPHY⑩ 4LP Low Power Quad 10/100-TX/FX Ethernet Transceiver
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM79C874 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:NetPHY-1LP Low Power 10/100-TX/FX Ethernet Transceiver
AM79C874KC/W 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Transceiver
AM79C874VC 制造商:Advanced Micro Devices 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP 制造商:AMD (Advanced Micro Devices) 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP
AM79C874VD 制造商:Advanced Micro Devices 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP 制造商:AMD (Advanced Micro Devices) 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP
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