UCS1002-3 datasheet(70/114 Pages) MICROCHIP

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UCS1002-3

DS20006852A-page 70

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bit 5-3

S1_TD[2:0]: Determines the stimulus 1 tSTIM_DEL value as shown below.

000 =0 ms

001 =1 ms

010 =5 ms

011 = 10 ms

100 = 20 ms

101 = 40 ms

110 = 80 ms

111 =100 ms

bit 2-0

STIM1[2:0]: Determines the Stimulus 1 that is used as shown below. Note that the lower threshold for

the window comparator option is fixed at 400 mV and only applies to the DPOUT pin. This setting cannot

be used for the DMOUT port.

000 = VBUS voltage ready to be applied before port power switch is closed. Next stimulus does not wait

for this to be removed.

001 = DPOUT voltage is higher than the threshold (S1_TH).

010 = Window comparator. DPOUT voltage is lower than the threshold (S1_TH) and DPOUT voltage

higher than the fixed threshold.

011 = DMOUT voltage is higher than the threshold (S1_TH).

100 = Do not use.

101 = Do not use.

110 = DPOUT voltage is higher than the threshold (S1_TH).

111 = VBUS voltage is present after port power switch is closed. Next stimulus does not wait for this

to be removed.

Note 1: The Legacy charger emulation profiles do not use these settings. Whenever a Legacy charger emulation

profile is applied within the DCE Cycle, these controls are not updated and must be ignored. These

settings are only used by the BC1.2 CDP and DCP charger emulation profiles.

(ADDRESS 31h)(Note 1) (CONTINUED)

UCS1002-3 Datasheet(PDF) 70 Page - Microchip Technology