82503 Datasheet, PDF (35/45 Pages) Intel Corporation – DUAL SERIAL TRANSCEIVER (DST)

82503
AUI Timings
AUI TRANSMIT TIMINGS
Symbol
Parameter
Min Typ Max Units
t₁₂₅
TxD to TRMT Pair Steady State Propagation Delay
200
ns
t₁₂₆
TRMT Pair Rise Fall Times
3
5
ns
t₁₂₇
Bit Cell Center to Bit Cell Center of TRMT Pair
99 5 100 100 5 ns
t₁₂₈
Bit Cell Center to Bit Cell Boundary of TRMT Pair
49 5 50 50 5
ns
t₁₂₉
TRMT Pair Held at Positive Differential at Start of Idle
200
ns
t₁₃₀
TRMT Pair Return to ^s 40 mV from Last Positive Transition
80
ms
Figure 34 AUI Transmit Timings
290421 – 33
AUI RECEIVE TIMINGS
Symbol
Parameter
Min Typ Max Units
t₁₃₅
RCV Pair Rise Fall Times
t₁₃₆
RCV Pair Bit Cell Center Jitter in Preamble
t₁₃₇
RCV Pair Bit Cell Center Boundary Jitter in Data
t₁₃₈
RCV Pair Idle Time after Transmission
8
t₁₃₉
RCV Pair Return to Zero from Last Positive Transition 160
t₁₄₀
CRS Assertion Delay (Intel National Fujitsu Modes)
(AMD Mode)
10
ns
g12
ns
g18
ns
ms
ns
100
ns
1050
ns
t₁₄₁
CRS Deassertion Delay
t₁₄₂
CRS Inhibited after Frame Transmission
350
ns
4
43
5
ms
Figure 35 AUI Receive Timings
290421 – 34
35