CS8900A
Crystal LAN™ ISA Ethernet Controller
SWITCHING CHARACTERISTICS (Continued)
Parameter
10BASE-T Receive
Symbol
Min
Typ
Max
Unit
Allowable Received Jitter at Bit Cell Center
Allowable Received Jitter at Bit Cell Boundary
Carrier Sense Assertion Delay
tTRX1
tTRX2
tTRX3
tTRX4
tTRX5
-
-
-
-
±13.5
ns
ns
±13.5
-
540
-
-
2
-
ns
Invalid Preamble Bits after Assertion of Carrier Sense
Carrier Sense Deassertion Delay
1
-
bits
ns
270
10BASE-T Link Integrity
First Transmitted Link Pulse after Last Transmitted Packet
Time Between Transmitted Link Pulses
Width of Transmitted Link Pulses
tLN1
tLN2
tLN3
tLN4
tLN5
tLN6
8
8
16
16
100
-
24
24
ms
ms
ns
60
2
200
7
Minimum Received Link Pulse Separation
Maximum Received Link Pulse Separation
Last Receive Activity to Link Fail (Link Loss Timer)
ms
ms
ms
25
50
-
150
150
-
RXD±
t
t
t
TRX1
TRX2
TRX5
t
t
TRX4
TRX3
Carrier Sense (internal)
10BASE-T Receive
t
t
t
LN3
LN1
LN2
TXD±
t
t
LN4
LN5
RXD±
t
LN6
LINKLED
10BASE-T Link Integrity
CIRRUS LOGIC PRODUCT DATA SHEET
DS271PP3
117
CIRRUS [ CIRRUS LOGIC ]
