參數(shù)資料
型號(hào)： DM9601
廠商： Electronic Theatre Controls, Inc.
英文描述： USB Ethernet MAC Controller with Intergrated 10/100 PHY
中文描述： USB以太網(wǎng)MAC控制器與集成10/100網(wǎng)卡芯片
文件頁(yè)數(shù)： 29/58頁(yè)
文件大?。?/td> 603K
代理商： DM9601
DM9601
USB to Ethernet MAC Controller with Integrated 10/100 PHYsceiver
Preliminary
Version: DM9601-DS-P01
April 24, 2001
29
11.1 Basic Mode Control Register (BMCR) - 00
Bit
Bit Name
Default
Description
0.15
Reset
0, RW/SC
Reset
1=Software reset
0=Normal operation
This bit sets the status and controls the PHY registers to their default
states. This bit, which is self-clearing, will keep returning a value of
one until the reset process is completed
Loopback
Loopback control register
1 = Loop-back enabled
0 = Normal operation
When in 100Mbps operation mode, setting this bit may cause the
descrambler to lose synchronization and produce a 720ms "dead
time" before any valid data appear at the MII receive outputs
Speed select
1 = 100Mbps
0 = 10Mbps
Link speed may be selected either by this bit or by auto-negotiation.
When auto-negotiation is enabled and bit 12 is set, this bit will return
auto-negotiation selected media type
Auto-negotiation Enable
1 = Auto-negotiation is enabled, bit 8 and 13 will be in auto-
negotiation status
Power Down
While in the power-down state, the PHY should respond to
management transactions. During the transition to power-down state
and while in the power-down state, the PHY should not generate
spurious signals on the MII.
1=Power down
0=Normal operation
Isolate
1 = Isolates the PHY from the MII with the exception of the serial
management. (When this bit is asserted, the PHY does not respond
to the TXD[0:3], TX_EN, and TX_ER inputs, and it shall present a
high impedance on its TX_CLK, RX_CLK, RX_DV, RX_ER, RX[0:3],
COL and CRS outputs. When PHY is isolated from the MII it shall
respond to the management transactions)
0 = Normal operation
Restart Auto-negotiation
1 = Restart auto-negotiation. Re-initiates the auto-negotiation
process. When auto-negotiation is disabled (bit 12 of this register
cleared), this bit has no function and it should be cleared. This bit is
self-clearing and it will keep returning a value of 1 until auto-
negotiation is initiated by the PHY. The operation of the auto-
negotiation process will not be affected by the management entity
that clears this bit
0 = Normal operation
0.14
Loopback
0, RW
0.13
Speed selection
1, RW
0.12
Auto-
negotiation
enable
1, RW
0.11
Power down
0, RW
0.10
Isolate
0,RW
0.9
Restart auto-
negotiation
0,RW/SC
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DM9601 WAF 制造商:Texas Instruments 功能描述:
DM9601-7P 制造商:TE Connectivity / Deutsch 功能描述:
DM9601E 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:USB to Ethernet MAC Controller with Integrated 10/100 PHY
DM9601J 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Retriggerable One Shot
DM9601N 制造商:Rochester Electronics LLC 功能描述:- Bulk
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