USB 2.0 Hi-Speed 3-Port Hub Controller Optimized for Portable Applications
Datasheet
Table 7.6 OCS Status Register
OCS_STAT
(0x30E6 - RESET= 0x00)
PORT POWER STATUS
BIT
NAME
R/W
DESCRIPTION
7:5
4:1
Reserved
OCS[4:1]
R
R
Reserved
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
0
Reserved
R
Reserved
Table 7.7 Serial Port Interrupt Status Register
SERIAL PORT INTERRUPT STATUS
SP_INT_STATUS
(0x30E8 - RESET= 0x00)
BIT
NAME
R/W
DESCRIPTION
7
Interrupt
R/W
Read:
0: INT_N pin has not been asserted low due to unmasked interrupt
1: INT_N pin has been asserted low due to unmasked interrupt
Write:
0: Negate INT_N pin high
1: No Effect – INT_N pin and register retains its current value
6:5
4
Reserved
R
Reserved
HubSuspInt
R/W
Read:
0: Hub has not entered USB suspend since last HubSuspInt reset
1: Hub has entered USB suspend
Write:
0: Negate HubSuspInt status low
1: No Effect
3
HubCfgInt
R/W
Read:
0: Hub has not been configured by the USB Host since last HubConfInt
reset
1: Hub has been configured by the USB host
Write:
0: Negate HubConfInt status low
1: No Effect
SMSC USB3813
39
Revision 1.0 (06-17-13)
DATASHEET
SMSC [ SMSC CORPORATION ]
