dp83630sqx National Semiconductor Corporation, dp83630sqx Datasheet - Page 117

• Manufacturer Part Number: dp83630sqx
• Description: Precision Phyter - Ieee 1588 Precision Time Protocol Transceiver
• Manufacturer: National Semiconductor Corporation

T2.25.1
T2.25.2
T2.25.3
T2.25.4
Parameter
18.2.25 RMII Transmit Timing (Master Mode)
Note: Latency measurement is made from the RX_CLK rising edge to the first bit of symbol.
RX_CLK, TX_CLK, CLK_OUT Period
TXD[1:0], TX_EN Data Setup to RX_CLK,
TX_CLK, CLK_OUT rising edge
TXD[1:0], TX_EN Data Hold from RX_CLK,
TX_CLK, CLK_OUT rising edge
RX_CLK, TX_CLK, CLK_OUT to PMD Output
Pair Latency
Description
50 MHz Reference Clock
From RX_CLK rising edge to
first bit of symbol
117
Notes
Min
4
2
30136254
Typ
20
11
Max
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Units
bits
ns
ns
ns