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UCS81003 Datasheet(PDF) 78 Page - Microchip Technology

Part # UCS81003
Description  Automotive USB Port Power Controller with Charger Emulation
PDF  108 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

UCS81003 Datasheet(HTML) 78 Page - Microchip Technology

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UCS81003
DS20005334A-page 78
 2014 Microchip Technology Inc.
10.13 Custom Emulation Configuration Registers
The Custom Emulation Configuration registers store
the values used by the Custom Charger Emulation cir-
cuitry. The Custom Charger Emulation profile is set up
as three stimuli and the respective responses.
The contents of registers 40h to 4Ch are retained in
Sleep.
bit 3-0
S3_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., STIM3<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.
Name
Bits
Address
Cof
Default
Custom Emulation Config
8
40h
R/W
01h
Custom Emulation Stimulus 1 - Config 1
8
41h
R/W
00h
Custom Emulation Stimulus 1 - Config 2
8
42h
R/W
00h
Custom Emulation Stimulus 1 - Config 3
8
43h
R/W
00h
Custom Emulation Stimulus 1 - Config 4
8
44h
R/W
00h
Custom Emulation Stimulus 2 - Config 1
8
45h
R/W
00h
Custom Emulation Stimulus 2 - Config 2
8
46h
R/W
00h
Custom Emulation Stimulus 2 - Config 3
8
47h
R/W
00h
Custom Emulation Stimulus 2 - Config 4
8
48h
R/W
00h
Custom Emulation Stimulus 3 - Config 1
8
49h
R/W
00h
Custom Emulation Stimulus 3 - Config 2
8
4Ah
R/W
00h
Custom Emulation Stimulus 3 - Config 3
8
4Bh
R/W
00h
Custom Emulation Stimulus 3 - Config 3
8
4Ch
R/W
00h
REGISTER 10-34: PRELOADED EMULATION STIMULUS 3 CONFIGURATION 3 REGISTER
(ADDRESS 3BH)(Note 1) (CONTINUED)



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