mc9s12ne64 Freescale Semiconductor, Inc, mc9s12ne64 Datasheet - Page 527

• Manufacturer Part Number: mc9s12ne64
• Description: Hcs12 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

A.14
A.14.1
Freescale Semiconductor
Typical values are at 25°C.
1 BT = Bit Time = 100 ns
Typical values are at 25°C.
1 BT = Bit Time = 100 ns
Num
Num
TXC
1
2
1
2
TXEN
EPHY Electrical Characteristics
COL
10BASE-T Jab and Unjab Timing
C
D
D
C
D
D
The electrical characteristics given in the EPHY section are
preliminary and should be used as a guide only. Values cannot be
guaranteed by Freescale Semiconductor and are subject to change
without notice.
COL (SQE) delay after TXEN off
COL (SQE) pulse duration
Maximum Transmit time
Unjab time
Table A-18. 10BASE-T SQE (Heartbeat) Timing Parameters
Table A-19. 10BASE-T Jab and Unjab Timing Parameters
Figure A-5. 10BASE-T SQE (Heartbeat) Timing
Parameter
Parameter
MC9S12NE64 Data Sheet, Rev. 1.1
NOTE
t1
Sym
Sym
t1
t2
t1
t2
t2
Min
Min
Typ
Typ
525
1.0
1.0
98
EPHY Electrical Characteristics
Max
Max
Units
Units
ms
ms
µs
µs
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