MC9S12NE64CPVE Datasheet, PDF (528/554 Pages) Freescale Semiconductor, Inc – MC9S12NE64 Device Overview

Appendix A Electrical Characteristics
TXEN
t1
TXD
COL
t2
Figure A-6. 10BASE-T SQE (Heartbeat) Timing
A.14.2 Auto Negotiation
A.14.2.1 MII – 100BASE-TX Transmit Timing Parameters
Table A-20. MII – Auto Negotiation and Fast Link Pulse Timing Parameters
Num
1
2
3
4
5
6
C
Parameter
D Clock/data pulse width
D Clock pulse to clock pulse
D Clock pulse to data pulse (data = 1)
D Pulses in a burst
D FLP burst width
D FLP burst to FLP burst
Sym
Min
Typ
Max
t1
100
t2
111
125
139
t3
55.5
62.5
69.5
t4
17
33
t5
2
t6
8
16
24
Units
ns
µs
µs
#
ms
ms
Typical values are at 25°C.
1 BT = Bit Time = 100 ns
These parameters are the minimum and maximum times as specified in section 24.6 of the IEEE 802.3u Standard
t2
t3
t1
t1
TX+
Clock Pulse
Data Pulse
Clock Pulse
Figure A-7. Auto-Negotiation and Fast Link Pulse Timing
MC9S12NE64 Data Sheet, Rev. 1.1
528
Freescale Semiconductor