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USB3803 Datasheet(PDF) 72 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) 72 Page - Microchip Technology

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USB3803
DS00001691B-page 72
 2014-2015 Microchip Technology Inc.
8.1.2
AUTOMATIC CHARGER DETECTION
The flowchart in Figure 8-2 details the charger detection sequence and the ability of the configuration settings to control
it.
FIGURE 8-2:
FLOWCHART FOR BATTERY CHARGING DETECTION SEQUENCE
BEGIN WHEN
BATT_CHG.
START_BC_DET
= 1
OR Enter
Hub.ChgDet Stage
VdatDet ?
END
Auto-Clear
BATT_CHG.
START_BC_DET = 0
OR Exit
Hub.ChgDet Stage
=1
=0
Wait
TVDPSRC_HICRNT
SDP Detected
BATT_CHG.
ChargerType=011
=0
=1
BCHGMODE.
Enable
ChrgDet?
Enable IDP_SRC
on DP and
RPD_DM
=1
BCHGMODE.
Enhanced
ChrgDet?
=1
=0
=0
BATT_CHG.
ChrgDetComplete
= 1
=1
=0
DCP Detected
BATT_CHG.
ChargerType=001
CDP Detected
BATT_CHG.
ChargerType=010
Wait for
fs_dp=0
OR TDCD_TOUT
Enable
VDAT_SRC on DP & IDAT_SINK on DM
for TVDPSRC_ON
Enable
VDAT_SRC on DM & IDAT_SINK on DP
for TVDPSRC_ON
VdatDet ?



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