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UCS81003 数据表(PDF) 83 Page - Microchip Technology

部件名 UCS81003
功能描述  Automotive USB Port Power Controller with Charger Emulation
PDF  108 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

UCS81003 数据表(HTML) 83 Page - Microchip Technology

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 2014 Microchip Technology Inc.
DS20005334A-page 83
UCS81003
bit 3-0
CS_S1_TH<3:0>: Defines the threshold value, as shown below for the specified stimulus. If the stimulus
is VBUS voltage is ready to be applied or applied (i.e., CS_STIM1<2:0> = 000b or 111b), the
threshold value is ignored.
0000
= 400 mV
0001
= 400 mV
0010
= 400 mV
0011
= 300 mV
0100
= 400 mV
0101
= 500 mV
0110
= 600 mV
0111
= 700 mV
1000
= 800 mV
1001
= 900 mV
1010
= 1400 mV
1011
= 1600 mV
1100
= 1800 mV
1101
= 2000 mV
1110
= 2200 mV
1111
= Do not use.
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 will not be updated and should be ignored. These
settings are only used by the BC1.2 CDP and DCP charger emulation profiles.
REGISTER 10-39: CUSTOM EMULATION STIMULUS 1 CONFIGURATION 4 REGISTER
(ADDRESS 44H)(Note 1)
U-x
U-x
U-x
U-x
U-x
R/W-0
R/W-0
R/W-0
—
—
—
—
—
CS_S1_RATIO<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 7-3
Unimplemented
bit 2-0
CS_S1_RATIO<2:0>: Determines the voltage divider ratio, as shown below, when the stimulus
response is set to connect a voltage divider (i.e., CS_S1_R1<3:0> = 0110b, 1001b, or 1100b).
000
=0.25
001
=0.33
010
=0.4
011
=0.5
100
=0.54
101
=0.6
110
=0.66
111
= Do not use.
Note 1:
The BC1.2 DCP and CDP charger emulation profiles do not use this control. Whenever the BC1.2 CDP or
DCP charger emulation profile is applied, these controls will not be updated and should be ignored. These
settings are only used by the Legacy charger emulation profiles.
REGISTER 10-38: CUSTOM EMULATION STIMULUS 1 CONFIGURATION 3 REGISTER
(ADDRESS 43H)(Note 1) (CONTINUED)



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