参数资料
型号: KSZ8041NL-EVAL
厂商: Micrel Inc
文件页数: 24/54页
文件大小: 0K
描述: BOARD EVALUATION FOR KSZ8041NL
标准包装: 1
主要目的: 接口,以太网 PHY
嵌入式:
已用 IC / 零件: KSZ8041NL
主要属性: 单芯片 PHY,10BASE-T/100BASE-TX
次要属性: MII,RMII,HP 自动 MDI,MDI-X 自动极性校正
已供物品:
产品目录页面: 1114 (CN2011-ZH PDF)
相关产品: 576-3296-5-ND - IC TXRX PHY 10/100 AUTO 32-MLF
576-2109-6-ND - IC TXRX PHY 10/100 LV/LP 32-MLF
576-2109-1-ND - IC TXRX PHY 10/100 LV/LP 32-MLF
576-2109-2-ND - IC TXRX PHY 10/100 LV/LP 32-MLF
KSZ8041NLA3TR-ND - TRANSCEIVER 10/100 32-MLF
576-1645-6-ND - IC TXRX PHY 10/100 LV/LP 32-MLF
576-1645-1-ND - IC TXRX PHY 10/100 LV/LP 32-MLF
576-1645-2-ND - IC TXRX PHY 10/100 LV/LP 32-MLF
其它名称: 576-1621
Micrel, Inc.
KSZ8041NL/RNL
September 2010
30
M9999-090910-1.4
Power Management
The KSZ8041NL/RNL offers the following power management modes:
Power Saving Mode
This mode is used to reduce power consumption when the cable is unplugged. It is in effect when auto-negotiation mode
is enabled, cable is disconnected, and register 1F bit 10 is set to 1. Under power saving mode, the KSZ8041NL/RNL
shuts down all transceiver blocks, except for transmitter, energy detect and PLL circuits. Additionally, for the KSZ8041NL
in MII mode, the RXC clock output is disabled. RXC clock is enabled after the cable is connected and link is established.
Power saving mode is disabled by writing a zero to register 1F bit 10.
Power Down Mode
This mode is used to power down the entire KSZ8041NL/RNL device when it is not in use. Power down mode is enabled
by writing a one to register 0 bit 11. In the power down state, the KSZ8041NL/RNL disables all internal functions, except
for the MII management interface.
Reference Clock Connection Options
A crystal or clock source, such as an oscillator, is used to provide the reference clock for the KSZ8041NL/RNL.
The Figure 6 illustrates how to connect the 25MHz crystal and oscillator reference clock.
Figure 6. 25MHz Crystal / Oscillator Reference Clock
For the KSZ8041NL, Figure 7 illustrates how to connect the 50MHz oscillator reference clock for RMII mode.
Figure 7. 50MHz Oscillator Reference Clock for KSZ8041NL RMII Mode
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