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DP8390D Fiches technique(PDF) 42 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No de pièce DP8390D
Description  NIC Network Interface Controller
PDF  56 Pages
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP8390D Fiches technique(HTML) 42 Page - National Semiconductor (TI)

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150 Switching Characteristics (Continued)
Register Write (Non Latched ADS0 e 1)
TLF8582 – 79
Symbol
Parameter
Min
Max
Units
rsws
Register Select to Write Setup
15
ns
(Note 1)
rswh
Register Select Hold from Write
0
ns
rwds
Register Write Data Setup
20
ns
rwdh
Register Write Data Hold
21
ns
wackl
Write Low to ACK Low
n bcyc a 30
ns
(Note 2)
wackh
Write High to ACK High
30
ns
ww
Write Width from ACK
50
ns
Note 1
Assumes ADS0 is high when RA0–3 changing
Note 2
ACK is not generated until CS and SWR are low and the NIC has synchronized to the register access In Dual Bus systems additional cycles will be used for
a local DMA or remote DMA to complete
42



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