参数资料
型号: DP83848C-POE-EK
厂商: National Semiconductor
文件页数: 51/86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
www.national.com
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7.2.4 False Carrier Sense Counter Register (FCSCR)
This counter provides information required to implement the “False Carriers” attribute within the MAU managed object
class of Clause 30 of the IEEE 802.3u specification.
7.2.5 Receiver Error Counter Register (RECR)
This counter provides information required to implement the “Symbol Error During Carrier” attribute within the PHY man-
aged object class of Clause 30 of the IEEE 802.3u specification.
Table 24. False Carrier Sense Counter Register (FCSCR), address 0x14
Bit
Bit Name
Default
Description
15:8
RESERVED
0, RO
RESERVED: Writes ignored, Read as 0
7:0
FCSCNT[7:0]
0, RO / COR
False Carrier Event Counter:
This 8-bit counter increments on every false carrier event. This
counter sticks when it reaches its max count (FFh).
Table 25. Receiver Error Counter Register (RECR), address 0x15
Bit
Bit Name
Default
Description
15:8
RESERVED
0, RO
RESERVED: Writes ignored, Read as 0
7:0
RXERCNT[7:0]
0, RO / COR
RX_ER Counter:
When a valid carrier is present and there is at least one occurrence
of an invalid data symbol, this 8-bit counter increments for each re-
ceive error detected. This event can increment only once per valid
carrier event. If a collision is present, the attribute will not incre-
ment. The counter sticks when it reaches its max count.
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