dm9000bi Davicom Semiconductor, Inc., dm9000bi Datasheet - Page 45

• Manufacturer Part Number: dm9000bi
• Description: Industrial-grade Ethernet Controller With General Processor Interface
• Manufacturer: Davicom Semiconductor, Inc.

10.3 AC Electrical Characteristics & Timing Waveforms
10.3.1 TP Interface
10.3.2 Oscillator/Crystal Timing
10.3.3 Power On Reset Timing
Note: The DM9000BI needs the time about 3ms to down load the setting from EEPROM after PWRST# deasserted,
During the period, the CS# pin is not recognized even no EEPROM present. So, please note that processor only
access DM9000BI after PWRST# deasserted 3ms.
Preliminary
Version: DM9000BI-13-DS-P02
January 17, 2008
Symbol
Symbol
Symbol
T
T
T
X
t
t
TR/F
T
t
PWH
TDC
CKC
PWL
OST
TM
t/T
T1
T2
T3
T4
OSC Clock Cycle
OSC Pulse Width High
OSC Pulse Width Low
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
Strap pins
PWRST#
PWRST# Low Period
Strap pin hold time with PWRST#
PWRST# high to EECS high
PWRST# high to EECS burst end
EECS
Parameter
Parameter
Parameter
Industrial-grade Ethernet Controller with General Processor Interface
T1
Min.
40
1
-
-
39.9988
Min.
16
16
Min.
3.0
0
0
0
0
11.31
Typ.
--
-
-
T2
Typ.
T3
Typ.
40
20
20
-
-
-
-
-
Max.
3
-
-
-
40.0012
T4
Max.
Max.
24
24
5.0
0.5
0.5
1.4
5
Unit
ms
ms
ns
us
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
%
Conditions
DM9000BI
-
-
Conditions
Conditions
30ppm
45