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| 型号： | DP83848YB/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 59/86页 |
| 文件大小： | 0K |
| 描述： | IC TXRX ETHERNET PHYTERA 48-LQFP |
| 标准包装： | 250 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | 以太网 |
| 电源电压： | 3 V ~ 3.6 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-LQFP 裸露焊盘 |
| 供应商设备封装： | 48-LQFP 裸露焊盘（7x7） |
| 包装： | 带卷 (TR) |
| 其它名称： | DP83848YBTR |
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7.2.12 Energy Detect Control (EDCR)
Table 32. Energy Detect Control (EDCR), address 0x1D
Bit
Bit Name
Default
Description
15
ED_EN
0, RW
Energy Detect Enable:
Allow Energy Detect Mode.
When Energy Detect is enabled and Auto-Negotiation is disabled
via the BMCR register, Auto-MDIX should be disabled via the PHY-
CR register.
14
ED_AUTO_UP
1, RW
Energy Detect Automatic Power Up:
Automatically begin power up sequence when Energy Detect Data
Threshold value (EDCR[3:0]) is reached. Alternatively, device
could be powered up manually using the ED_MAN bit (ECDR[12]).
13
ED_AUTO_DOWN
1, RW
Energy Detect Automatic Power Down:
Automatically begin power down sequence when no energy is de-
tected. Alternatively, device could be powered down using the
ED_MAN bit (EDCR[12]).
12
ED_MAN
0, RW/SC
Energy Detect Manual Power Up/Down:
Begin power up/down sequence when this bit is asserted. When
set, the Energy Detect algorithm will initiate a change of Energy De-
tect state regardless of threshold (error or data) and timer values.
In managed applications, this bit can be set after clearing the Ener-
gy Detect interrupt to control the timing of changing the power
state.
11
ED_BURST_DIS
0, RW
Energy Detect Bust Disable:
Disable bursting of energy detect data pulses. By default, Energy
Detect (ED) transmits a burst of 4 ED data pulses each time the CD
is powered up. When bursting is disabled, only a single ED data
pulse will be send each time the CD is powered up.
10
ED_PWR_STATE
0, RO
Energy Detect Power State:
Indicates current Energy Detect Power state. When set, Energy
Detect is in the powered up state. When cleared, Energy Detect is
in the powered down state. This bit is invalid when Energy Detect
is not enabled.
9
ED_ERR_MET
0, RO/COR
Energy Detect Error Threshold Met:
No action is automatically taken upon receipt of error events. This
bit is informational only and would be cleared on a read.
8
ED_DATA_MET
0, RO/COR
Energy Detect Data Threshold Met:
The number of data events that occurred met or surpassed the En-
ergy Detect Data Threshold. This bit is cleared on a read.
7:4
ED_ERR_COUNT
0001, RW
Energy Detect Error Threshold:
Threshold to determine the number of energy detect error events
that should cause the device to take action. Intended to allow aver-
aging of noise that may be on the line. Counter will reset after ap-
proximately 2 seconds without any energy detect data events.
3:0
ED_DATA_COUNT
0001, RW
Energy Detect Data Threshold:
Threshold to determine the number of energy detect events that
should cause the device to take actions. Intended to allow averag-
ing of noise that may be on the line. Counter will reset after approx-
imately 2 seconds without any energy detect data events.
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相关代理商/技术参数 |
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| DP83848YBX/NOPB | 功能描述:以太网 IC RoHS:否 制造商:Micrel 产品:Ethernet Switches 收发器数量:2 数据速率:10 Mb/s, 100 Mb/s 电源电压-最大:1.25 V, 3.45 V 电源电压-最小:1.15 V, 3.15 V 最大工作温度:+ 85 C 封装 / 箱体:QFN-64 封装:Tray |
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| DP83849CVS | 功能描述:以太网 IC RoHS:否 制造商:Micrel 产品:Ethernet Switches 收发器数量:2 数据速率:10 Mb/s, 100 Mb/s 电源电压-最大:1.25 V, 3.45 V 电源电压-最小:1.15 V, 3.15 V 最大工作温度:+ 85 C 封装 / 箱体:QFN-64 封装:Tray |
| DP83849CVS | 制造商:Texas Instruments 功能描述:TRANSCEIVER, ENET PHYTER, DUAL, 80TQFP 制造商:Texas Instruments 功能描述:TRANSCEIVER, ENET PHYTER, DUAL, 80TQFP; Data Rate:100Mbps; Ethernet Type:IEEE 802.3u; Supply Voltage Min:3V; Supply Voltage Max:3.6V; Digital IC Case Style:TQFP; No. of Pins:80; Interface Type:MII, RMII, Serial; Operating Temperature;RoHS Compliant: Yes |
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