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USB3803 Datasheet(PDF) 31 Page - Microchip Technology

Part # USB3803
Description  USB 2.0 High-Speed Hub Controller Optimized
PDF  99 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB3803 Datasheet(HTML) 31 Page - Microchip Technology

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 2014-2015 Microchip Technology Inc.
DS00001691B-page 31
USB3803
5.3.27
REGISTER E2H: UPSTREAM BATTERY CHARGER DETECTION - BATT_CHG
Default = 0x02h
Bit Number
Bit Name
Description
7:5
ChargerType
Read Only.
This register indicates the result of the automatic charger detection. Values
reported depend on EnhancedChrgDet setting in Battery Charger Mode Regis-
ter.
If EnhancedChrgDet=1
000 = Charger Detection is not complete.
001 = DCP - Dedicated Charger Port
010 = CDP – Charging Downstream Port
011 = SDP – Standard Downstream Port
100 = Reserved
101 = Reserved
110 = Reserved
111 = Charger Detection Disabled
If EnhancedChrgDet=0
000 = Charger Detection is not complete.
001 = DCP/CDP – Dedicated Charger or Charging Downstream Port
010 = Reserved
011 = SDP – Standard Downstream Port
100 = Reserved
101 = Reserved
110 = Reserved
111 = Charger Detection Disabled
4
ChrgDetCom-
plete
Read Only.
Indicates Charger Detection has been run and is completed. This bit is negated
when START_BC_DET is asserted high.
3:2
Reserved
Reserved
1
CHG_DET_N
Single bit indication of whether an unmasked USB battery charger was detected
based on the settings in CHGDETMASK register.
0 = Write: No Effect / Read: Charger detected on last charger detection
sequence
1 = Write: Negate bit high / Read: No Charger was detected on last charger
detection sequence
0START_BC_-
DET
Manually Initiates a USB battery charger detection sequence at the time of
assertion. This bit must not be set while hub is in operation. Bit is cleared auto-
matically when the manual battery charger detection sequence is completed.
0 = Write: No Effect / Read: Battery Charger Detection Sequence Completed or
not run.
1 = Write: Start Battery Charger Detection / Read: Battery Charger Detection
Sequence is running



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