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USB3803 데이터시트(PDF) 73 Page - Microchip Technology

부품명 USB3803
상세설명  USB 2.0 High-Speed Hub Controller Optimized
PDF  99 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB3803 데이터시트(HTML) 73 Page - Microchip Technology

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 2014-2015 Microchip Technology Inc.
DS00001691B-page 73
USB3803
The diagram in Figure 8-3 illustrates automatic Battery Charging detection when enhanced battery charger detection is
enabled. A USB Battery Charging 1.1 charger is discovered and the charger detection sequence continues in order to
differentiate between a Dedicated Charging Port and a Charging Downstream Port.
8.1.3
BATTERY CHARGER TIMING
Table 8-2 specifies timing parameters for the battery charging sequence.
FIGURE 8-3:
ENHANCED CHARGER DETECTION TIMING - BC1.1
TABLE 8-2:
BATTERY CHARGING TIMING PARAMETERS
Characteristic
Symbol
Min
Typ
Max
Units
Conditions
Charger Detection
Start Time delay
TCDSTART
Thubinit +
Thubconfig
mS
See Table 4-2
Data Contact Detect
Time-out
TDCD_TOUT
199
200
204
mS
HUB.ChgDet
stage on pll
RESET_N
IDP_SRC,
RPD_DM
DP
ChargerType
ChrgDetComple
te
T_CdStart
T_DCD_TOUT
DM
‘100’ or ‘101’
VDAT_SRC
(DP)
T_VDPSRC_ON
T_VDPSRC_ON
VDAT_SRC
(DM)
‘1’ if connected
to DCP
‘0’ if connected to
CDP
‘001’ if
connected to
DCP
‘010’ if connected
to CDP



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