参数资料
型号: DP83848C-MAU-EK
厂商: National Semiconductor
文件页数: 69/86页
文件大小: 0K
描述: BOARD EVALUATION DP83848C
标准包装: 1
主要目的: 接口,以太网
已用 IC / 零件: DP83848C
已供物品:
相关产品: DP83848CVVX/NOPBTR-ND - TXRX ETHERNET PHYTER 48-LQFP
DP83848CVV-ND - IC TXRX ETHERNET PHYTER 48-LQFP
www.national.com
70
DP
83
84
8C
8.2.9 100BASE-TX Receive Packet Latency Timing
Note: Carrier Sense On Delay is determined by measuring the time from the first bit of the “J” code group to the assertion
of Carrier Sense.
Note: 1 bit time = 10 ns in 100 Mb/s mode
Note: PMD Input Pair voltage amplitude is greater than the Signal Detect Turn-On Threshold Value.
8.2.10 100BASE-TX Receive Packet Deassertion Timing
Note: Carrier Sense Off Delay is determined by measuring the time from the first bit of the “T” code group to the deasser-
tion of Carrier Sense.
Note: 1 bit time = 10 ns in 100 Mb/s mode
Parameter
Description
Notes
Min
Typ
Max
Units
T2.9.1
Carrier Sense ON Delay
100 Mb/s Normal mode
20
bits
T2.9.2
Receive Data Latency
100 Mb/s Normal mode
24
bits
Parameter
Description
Notes
Min
Typ
Max
Units
T2.10.1
Carrier Sense OFF Delay
100 Mb/s Normal mode
24
bits
CRS
RXD[3:0]
PMD Input Pair
RX_DV
RX_ER
IDLE
Data
(J/K)
CRS
PMD Input Pair
DATA
IDLE
(T/R)
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