Register Write (Latched Using ADS0)

TLF8582 – 78

Symbol

Parameter

Min

Max

Units

rss

Register Select Setup to ADS0 Low

10

ns

rsh

Register Select Hold from ADS0 Low

17

ns

aswi

Address Strobe Width In

15

ns

rwds

Register Write Data Setup

20

ns

rwdh

Register Write Data Hold

21

ns

ww

Write Strobe Width from ACK

50

ns

wackh

Write Strobe High to ACK High

30

ns

wackl

Write Low to ACK Low (Notes 1 2)

ns

rswsl

Register Select to Write Strobe Low

10

ns

Note 1

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

Note 2

CS may be asserted before or after SWR IfCS is asserted after SWR wackl is referenced from falling edge of CS

41