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DP83848IVVX 参数 Datasheet PDF下载

DP83848IVVX图片预览
型号: DP83848IVVX
PDF下载: 下载PDF文件 查看货源
内容描述: DP83848I PHYTER工业温度单端口10/100 Mb / s以太网物理层收发器 [DP83848I PHYTER Industrial Temperature Single Port 10/100 Mb/s Ethernet Physical Layer Transceiver]
分类和应用: 以太网局域网(LAN)标准
文件页数/大小: 86 页 / 788 K
品牌: TI [ TEXAS INSTRUMENTS ]
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figuration values will be re-latched into the device (similar  
to the power-up/reset operation).  
6.0 Reset Operation  
The DP83848I includes an internal power-on reset (POR)  
function and does not need to be explicitly reset for normal  
operation after power up. If required during normal opera-  
tion, the device can be reset by a hardware or software  
reset.  
6.2 Software Reset  
A software reset is accomplished by setting the reset bit  
(bit 15) of the Basic Mode Control Register (BMCR). The  
period from the point in time when the reset bit is set to the  
point in time when software reset has concluded is approx-  
imately 1 µs.  
6.1 Hardware Reset  
The software reset will reset the device such that all regis-  
ters will be reset to default values and the hardware config-  
uration values will be maintained. Software driver code  
must wait 3 µs following a software reset before allowing  
further serial MII operations with the DP83848I.  
A hardware reset is accomplished by applying a low pulse  
(TTL level), with a duration of at least 1 µs, to the  
RESET_N. This will reset the device such that all registers  
will be reinitialized to default values and the hardware con-  
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