mc68160b Freescale Semiconductor, Inc, mc68160b Datasheet - Page 17

• Manufacturer Part Number: mc68160b
• Description: Enhanced Ethernet Transceiver
• Manufacturer: Freescale Semiconductor, Inc

TP TRANSMIT JABBER SWITCHING
TP TRANSMIT SIGNAL QUALITY ERROR TEST SWITCHING
NOTE: The load attached to the specified output is a 20 pF capacitor connected to ground, unless otherwise noted.
MOTOROLA ANALOG IC DEVICE DATA
Max Length of Transmission before Assertion
Time from End of Jabber Condition to Deassertion:
CLSN (Signal Quality Error Test) (See Figure 22)
TPSQEL Disable Delay Time (See Figure 22)
(Differential)
of TPJABB to indicate Jabber Condition
CLSN to indicate Jabber Condition
of TPJABB
of CLSN
A
Assertion from last positive TPTX edge
Deassertion from last positive TPTX edge
Deassertion from last ositive TPTX edge
Pulse Width
TPJABB
CLSN
TPTX
ti
f
l
t
585mV
iti
t 139
–585mV
TPTX d
Characteristic
t 140
Figure 20. TPTX+/– Link Pulse Timing
t 141
585mV
Figure 21. TPJABB Switching
t 160
t 161
50mV
MC68160B
t 142
1.5V
585mV
1.5V
Symbol
t 160
t 161
t 162
t 163
t
t 170
t 171
t 171
t 172
t 173
585mV
t 162
t 163
Min
500
500
0 6
0.6
0.5
20
20
–
–
Max
750
750
1 6
1.6
3.1
3.1
1.5
60
60
40
1.5V
1.5V
Unit
ms
ms
ns
17
s