AM79C940JC/W AMD [Advanced Micro Devices], AM79C940JC/W Datasheet - Page 94

• Manufacturer Part Number: AM79C940JC/W
• Manufacturer: AMD [Advanced Micro Devices]

AC CHARACTERISTICS (continued)
94
AUI Timing
DAI Port Timing
100
101
102
No.
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
79
80
70
72
80
95
96
97
98
99
Parameter
t
t
Symbol
TXENETD
CRSCLSD
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
DOETM
t
t
t
DOETD
PWMDI
PWMCI
t
TXDTM
FRXDD
t
PWRDI
PWODI
PWKDI
PWRCI
PWOCI
PWKCI
t
TXEND
t
t
TXDTR
LRXDD
TXDTF
CLSHI
DOTD
DOTR
SQED
DOTF
SQEL
t
TXDD
t
DOTF
TXH
TXH
XTAL1 (externally driven) to DO
DO rise time (10% to 90%)
DO fall time (10% to 90%)
DO rise and fall mismatch
DO End of Transmit Delimiter
DI pulse width to reject
DI pulse width to turn on internal DI carrier
sense
DI pulse width to maintain internal DI carrier
sense on
DI pulse width to turn internal DI carrier
sense off
CI pulse width to reject
CI pulse width to turn on internal SQE sense |input| > |
CI pulse width to maintain internal SQE
sense on
CI pulse width to turn internal SQE sense off |input| > |
CI SQE Test delay from O inactive
CI SQE Test length
CLSN high time
TXEN or DO hold time from CLSN
STDCLK delay to TXEN
STDCLK delay to TXDAT change
TXEN or TXDAT hold time from CLSN
Mismatch in STDCLK
TXDAT change
TXDAT rise time
TXDAT fall time
TXDAT rise and fall mismatch
TXEN End of Transmit Delimiter
First RXDAT delay to RXCRS
Last RXDAT
RXCRS delay to CLSN (TXEN = 0)
Parameter Description
delay to RXCRS
to TXEN and
|input| > |
|input| > |
|input| > |
|input| > |
|input| > |
|input| > |
|input| > |
|input| > |
|input| > |
C
C
See Note 1
See Note 1
See Note 1
L
L
= 50 pF
= 50 pF
Test Conditions
VASQ
VASQ
VASQ
VASQ
VASQ
VASQ
VASQ
VASQ
VASQ
VASQ
VASQ
|
|
|
|
|
|
|
|
|
|
|
t
STDC
32*t
32*t
Min (ns)
200
200
160
250
2.5
2.5
45
45
26
26
STDC
STDC
+ 30
Max (ns)
96*t
96*t
100
375
136
350
100
120
100
5.0
5.0
15
10
90
70
70
15
1
5
5
1
STDC
STDC