UCS1003-3 datasheet(113/138 Pages) MICROCHIP

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DS20005346B-page 113

UCS1003-1/2/3

(ADDRESS 45h)

U-0

R/W-0

—

CS_S2TYPE

CS_S2_TD<2:0>

CS_STIM2<2:0>

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7

Unimplemented:

Read as ‘0’

bit 6

CS_S2TYPE:

Stimulus 2 Timer Behavior Determination bit

= The stimulus timer controls how long the response is applied after the stimulus is detected; the

response is applied immediately and held for the duration of the timer, then removed (if the stimulus

has been removed)

= The stimulus timer is a delay from when the stimulus is detected until the response is performed

bit 5-3

CS_S2_TD<2:0>:

Stimulus 2 tSTIM_DEL Value Determination bits

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

CS_STIM2<2:0>:

Stimulus 2 Usage Determination bits

Determines the Stimulus 2 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 is ready to be applied before port power switch is closed; next stimulus will not wait

for this to be removed (default)

001

=DPOUT voltage is greater than the threshold (CS_S2_TH)

010

= Window comparator; DPOUT voltage is less than the threshold (S1_TH) and DPOUT voltage

greater than the fixed threshold

011

=DMOUT voltage is greater than the threshold (CS_S2_TH)

100

= Do not use

101

= Do not use

110

=DPOUT voltage is greater than the threshold (CS_S2_TH)

111

= Voltage is present after the port power switch is closed; next stimulus will not wait for this to be

removed.

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