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15.0 Switching Characteristics
AC Specs DP83902A
Note:
All Timing is Preliminary (Continued)
Remote DMA (Read, Send Command)
TL/F/11157 – 42
Symbol
Parameter
Min
Max
Units
bpwrl
Bus Clock to Port Write Low
43
ns
bpwrh
Bus Clock to Port Write High
40
ns
prqh
Port Write High to Port Request High (Note 1)
30
ns
prql
Port Request Low from Read Acknowledge High
60
ns
rakw
Remote Acknowledge Read Strobe Pulse Width
20
ns
Note 1:
Start of next transfer is dependent on where RACK is generated relative to BSCK and whether a local DMA is pending.
61
Obsolete