dp83630sqx National Semiconductor Corporation, dp83630sqx Datasheet - Page 116

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

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T2.23.1
T2.24.1
T2.24.2
T2.24.3
T2.24.4
Parameter
Parameter
18.2.23 10 Mb/s Internal Loopback Timing
Note: Measurement is made from the first falling edge of TX_CLK after assertion of TX_EN.
18.2.24 RMII Transmit Timing (Slave Mode)
Note: Latency measurement is made from the X1 rising edge to the first bit of symbol.
X1 Clock Period
TXD[1:0], TX_EN, Data Setup to X1 rising edge
TXD[1:0], TX_EN, Data Hold from X1 rising edge
X1 Clock to PMD Output Pair Latency (100 Mb) 100BASE-TX or 100BASE-FX
TX_EN to RX_DV Loopback
Description
Description
10 Mb/s internal loopback mode
50 MHz Reference Clock
116
Notes
Notes
Min
Min
4
2
30136244
Typ
30136245
Typ
20
11
Max
2
Max
Units
Units
µs
bits
ns
ns
ns