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DP83261 Datasheet(PDF) 118 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP83261
Description  BMAC Device (FDDI Media Access Controller)
PDF  132 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83261 Datasheet(HTML) 118 Page - National Semiconductor (TI)

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80 Electrical Characteristics (Continued)
844 MAC Interface
Pin Groups
Group
IO
Pins
1
I
SAIGT SAT STRIP EA VCOPY RQEOF RQSEND RQFINAL
2
I
RQRDY
3
I
FCST RQBCN RQCLS(3 – 0) EM RQABT
4
I
RQCLM
5
I
MRD(7 – 0) MRP
6
O
TXPASS TXED TXABORT RCSTART FCRCVD SAMESA INFORCVD SAMEINFO TXRDY TXACK
TXCLASS THTDIS TXRINGOP DIAG DARCVD AFLAG SARCVD MFLAG EDRCVD VFCS VDL TKRCVD
FOERROR FRSTRIP MACRST
7
O
MID(7 – 0) MIP
Symbol
Parameter
Min
Max
Units
T30
MAC Control Setup (Groups
1 and
3 and
4)
15
ns
T31
MAC Control Setup (Group
2)
30
ns
T32
MAC Control Hold (Group
3)
2
ns
T33
MAC Control Hold (Groups
1 and
2 and
4)
5
ns
T34
MAC Data Setup (Group
5)
15
ns
T35
MAC Data Hold (Group
5)
6
ns
T36
MAC Control Sustain (Group
6)
15
ns
T37
MAC Control Valid (Group
6)
45
ns
T38
MAC Data Sustain (Group
7)
15
ns
T39
MAC Data Valid (Group
7)
45
ns
TLF10387 – 34
Note
All setup and hold testing is done on single edges only (ie no combined setuphold testing is done for pulse signals This implies that the signal makes a
single low to high or high to low transition per cycle)
FIGURE 8-7 MAC Interface Timings
118



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