参数资料
型号: DP83848C-POE-EK
厂商: National Semiconductor
文件页数: 32/86页
文件大小: 0K
描述: BOARD EVALUATION DP83848C
标准包装: 1
系列: PowerWise®
主要目的: 特殊用途 DC/DC,以太网供电(POE)
输出及类型: 1,隔离
功率 - 输出: 24W
输出电压: 3.3V
电流 - 输出: 7.3A
输入电压: 39 ~ 57V
稳压器拓扑结构: 回扫
频率 - 开关: 250kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: LM5072
相关产品: DP83848CVVX/NOPBTR-ND - TXRX ETHERNET PHYTER 48-LQFP
DP83848CVV-ND - IC TXRX ETHERNET PHYTER 48-LQFP
37
www.national.com
DP
83
84
8
C
6.0 Reset Operation
The DP83848C 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.
6.1 Hardware Reset
A hardware reset is accomplished by applying a low pulse
(TTL level), with a duration of at least 1
s, to the
RESET_N. This will reset the device such that all registers
will be reinitialized to default values and the hardware con-
figuration values will be re-latched into the device (similar
to the power-up/reset operation).
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
s.
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
s following a software reset before allowing
further serial MII operations with the DP83848C.
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相关代理商/技术参数
参数描述
DP83848CVV 制造商:Texas Instruments 功能描述:IC, 10/100 ETHERNET PHY, SMD, LQFP48
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