DP83932C NSC [National Semiconductor], DP83932C Datasheet - Page 96

• Manufacturer Part Number: DP83932C
• Description: MHz SONICTM Systems-Oriented Network Interface Controller
• Manufacturer: NSC [National Semiconductor]

7 0 AC and DC Specifications
ENDEC-MAC SERIAL TIMING FOR RECEPTION (EXTERNAL ENDEC MODE)
Note 1 tcyc
Note 2 This parameter refers to longest time (not including wait-states) the SONIC requires to perform its end of receive processing and be ready for the next
start of frame delimiter This time is 4
Note 3 To ensure proper receive operation a minimum of 5 RXCs after CRS low are required
ENDEC-MAC SERIAL TIMING FOR TRANSMIT (NO COLLISION)
Note 1 tcyc
Number
T127
T128
T129
T130
T131
T132
T133
T134
T135
Number
T118
T119
T120
T121
T122
T124
T125
T126
e
e
transmit clocks rcyc
transmit clock
Transmit Clock High Time
Transmit Clock Low Time
Transmit Clock Cycle Time
TXC to TXE High
TXC to TXD Valid
TXD Hold Time from TXC
TXC to TXE Low
TXE Low to Start of CD Heartbeat (Note 1)
Collision Detect Width (Note 1)
Receive Clock High Time
Receive Clock Low Time
Receive Clock Cycle Time
RXD Setup to RXC
RXD Hold from RXC
Maximum Allowed Dribble Bits
Receive Recovery Time (Note 2)
RXC to Carrier Sense Low (Notes 1 3)
e
a
receive clocks bcyc
36 tcyc bcyc This is guaranteed by design and is not tested
Parameter
Parameter
e
(Continued)
T3
96
Min
40
40
90
20
15
Min
40
40
90
5
2
Max
110
Max
6
1
110
40
15
40
64
TL F 10492– 78
TL F 10492– 79
Units
Units
rcyc
Bits
tcyc
tcyc
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns