USB 2.0 Hi-Speed 2-Port Hub Controller
Datasheet
(HW_INIT)
(SW_INIT)
Run from
Internal ROM
CFG_SEL[1:0] = 11b
NO
YES
YES
SMBus or I2C
Present?
NO
Config Load
From I2C
Do SMBus or I2C
Initialization
Config Load
From Internal ROM
NO
SOC Done?
YES
Combine OTP
Config Data
(SOC_CFG)
(CONFIG)
SW Upstream
BC detection
(CHGDET)
Hub Connect
(Hub.Connect)
Normal
operation
Figure 5.1 Hub Operational Mode Flowchart
Revision 1.0 (06-17-13)
22
SMSC USB2532
DATASHEET