DM9000 Datasheet, PDF (39/54 Pages) List of Unclassifed Manufacturers – ISA TO ETHERNET MAC CONTROLLER WITH INTEGRATED 10/100 PHY

DM9000
ISA to Ethernet MAC Controller with Integrated 10/100 PHY
10.4 AC Electrical Characteristics & Timing Waveforms
10.4.1 TP Interface
Symbol
tTR/F
tTM
tTDC
tT/T
XOST
Parameter
100TX+/- Differential Rise/Fall Time
100TX+/- Differential Rise/Fall Time
Mismatch
100TX+/- Differential Output Duty Cycle
Distortion
100TX+/- Differential Output Peak-to-Peak
Jitter
100TX+/- Differential Voltage Overshoot
Min.
3.0
0
0
0
0
Typ.
-
-
Max.
5.0
0.5
-
0.5
-
1.4
-
5
Unit
ns
ns
ns
ns
%
10.4.2 Oscillator/Crystal Timing
Symbol
tCKC
tPWH
tPWL
Parameter
TCKC
TCKC
OSC Pulse Width Low
Min. Typ. Max. Unit
39.998 40
40.002
ns
16
20
24
ns
16
20
24
ns
Conditions
Conditions
50ppm
10.4.3 Processor Register Read Timing
AEN,SA ,CMD
IOR
SD
IO16,IO32
→ T1 ←
→ T5 ←
←
T2
→←
T6
← ^T3 →
→
← ^T4
→
← T7
→ ^{← T8}
→
Note 1.2
Symbol
Parameter
T1 System address valid to IOR valid
T2 IOR width
T3 SD Setup time
T4 IOR invalid to SD invalid
T5 IOR invalid to system address invalid
T6 IOR invalid to next IOR valid （access DM9000）
T7 System address valid to IO16,IO32 valid
T8 System address invalid to IO16, IO32 invalid
Min. Typ. Max. Unit
5
ns
22
ns
10
ns
4
ns
5
ns
80
ns
5
ns
5
ns
Final
39
Version: DM9000-DS-F02
June 26, 2002