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DP83901AV Datasheet(PDF) 59 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP83901AV
Description  Serial Network Interface Controller
PDF  62 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83901AV Datasheet(HTML) 59 Page - National Semiconductor (TI)

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150 Switching Characteristics AC Specs DP83901A Note All Timing is Preliminary (Continued)
Remote DMA (Write Cycle)
TLF10469 – 43
Symbol
Parameter
Min
Max
Units
bprqh
Bus Clock to Port Request High (Note 1)
42
ns
wprql
WACK to Port Request Low
52
ns
wackw
WACK Pulse Width
25
ns
bprdl
Bus Clock to Port Read Low (Note 2)
55
ns
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 BSCK and whether a local DMA is pending
59



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