1894K-40LF IDT, 1894K-40LF Datasheet - Page 50

• Manufacturer Part Number: 1894K-40LF
• Description: Ethernet ICs 3.3V 10/100 PHY RMII
• Manufacturer: IDT

Specifications of 1894K-40LF

• Rohs: yes
• Part # Aliases: ICS1894K-40LF

Auto-Negotiation Fast Link Pulse Timing
Auto-Negotiation Fast Link Pulse Timing Diagram
IDT® 10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
ICS1894-40
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
Differential
Twisted Pair
Transmit Signal
Differential
Twisted Pair
Transmit Signal
The table below lists the significant time periods for the ICS1894-40 Auto-Negotiation Fast Link Pulse. The time
periods consist of timings of signals on the following pins:
•
•
The Auto-Negotiation Fast Link Pulse Timing Diagram shows the timing diagram for one pair of these differential
signals, for example TP_TXP minus TP_TXN.
Period
Time
TP_TXP
TP_TXN
t1
t2
t3
t4
t5
t6
Clock/Data Pulse Width
Clock Pulse-to-Data Pulse Timing
Clock Pulse-to-Clock Pulse Timing
Fast Link Pulse Burst Width
Fast Link Pulse Burst to Fast Link Pulse Burst
Number of Clock/Data Pulses in a Burst
FLP Burst
Clock
Pulse
t1
t4
Parameter
t2
t5
Data
Pulse
t1
t3
Conditions
–
–
–
–
–
50
–
FLP Burst
Min.
110
55
10
15
–
–
Typ.
125
90
60
15
20
5
Clock
Pulse
ICS1894-40
Max.
140
70
25
30
–
–
pulses
Units
PHYCEIVER
ms
ms
ns
μs
μs
REV K 022412