USB2534 Datasheet, PDF (38/62 Pages) SMSC Corporation – USB 2.0 Hi-Speed 4-Port Hub Controller

USB 2.0 Hi-Speed 4-Port Hub Controller
Datasheet
Table 7.6 OCS Status Register
OCS_STAT
(0x30E6 - RESET= 0x00)
PORT POWER STATUS
BIT NAME
7:5 Reserved
4:1 OCS[4:1]
0
Reserved
R/W DESCRIPTION
R
Reserved
R
Optional control from SOC that indicates an over-current condition on the
corresponding port for HUB status reporting to USB host. Also resets
corresponding PRTPWR status bit in the Port Power Status Register. Not
required for an embedded application.
0: No Over Current Condition
1: Over Current Condition
R
Reserved
Table 7.7 Upstream Battery Charger Mode Register
BC_CHG_MODE
(0x30EC - RESET= 0x00
UPSTREAM BATTERY CHARGER MODE
BIT NAME
R/W DESCRIPTION
7:6 Reserved
5
HoldVdat
R
Reserved
R/W Dead Battery Vdat Detect voltage source enable
0: The charger detection state machine will turn off the Vdat Source at the
end of the charger detection routine.
1: The charger detection state machine leave Vdat Source on during
Hub.Connect stage when a SDP has been detected.
4
Reserved
3
SE1ChrgDet
2
EnhancedChrgDet
1:0 Reserved
R
Reserved
R/W Apple type charger detection control
0: The charger detection routine will not look for the attachment of an
Apple type charger.
1: The charger detection routine will look for the attachment of an Apple
type charger.
R/W Enhanced charge detect control
0: The charger detection routine will not reverse Vdat SRC to differentiate
between a CDP and a DCP.
1: The charger detection routine will reverse Vdat SRC to differentiate
between a CDP and a DCP.
R
Reserved
Revision 1.0 (06-17-13)
38
DATASHEET
SMSC USB2534