Hi, Dominic Evans writes: > // this chip (isp116x) gives a pulse of 167ns on the interrupt, pxa250 > requires 1000ns > The minimum pulse width requirements for PXA250, 255 and 270 are according to the corresponding Developer's Manuals: 1000ns for PXA250 290ns for PXA255 154ns for PXA270 (from "PXA270 Electrical, Mechanical and Thermal Spec.")
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