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DP8390DV Fiches technique(PDF) 50 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No de pièce DP8390DV
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)

DP8390DV Fiches technique(HTML) 50 Page - National Semiconductor (TI)

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150 Switching Characteristics (Continued)
Remote DMA (Write Cycle)
TLF8582 – 86
Symbol
Parameter
Min
Max
Units
bprqh
Bus Clock to Port Request High
42
ns
(Note 1)
wprql
WACK to Port Request Low
45
ns
wackw
WACK Pulse Width
20
ns
bprdl
Bus Clock to Port Read Low
40
ns
(Note 2)
bprdh
Bus Clock to Port Read High
40
ns
Note 1
The first port request is issued in response to the remote write command It is subsequently issued on T1 clock cycles following completion of remote DMA
cycles
Note 2
The start of the remote DMA write following WACK is dependent on where WACK is issued relative to BUSCK and whether a local DMA is pending
50



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