Operating Basics Resume Measurement
Resume Measurement
This test calculates the device/H UB resume High-speed operation, indicated by High-speed SOF packets
(with 400 mV nominal amplitude) following the K state driven by the host controller. For the Host, this is
the time between the falling edge of D+ and the First SOF. This should not exceed 3.0 ms. To get the
Suspe
nd signal, hot-plug the unit under test (device) and measure the signaling with single-ended probes
on both lines. The application analyzes data for the following:
Resu
me Time
Amplitude
TDSUSB2 Universal Serial Bus Measurements Package 47
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