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USB 2.0 High-Speed 2-Port Hub Controller
Datasheet
Revision 1.92 (11-28-07) 14 SMSC USB2512
DATASHEET
4.2.1.1 Register 00h: Vendor ID (LSB)
03h R/W PID MSB PIDM 25h 0x00
04h R/W DID LSB DIDL 00h 0x00
05h R/W DID MSB DIDM 00h 0x00
06h R/W Config Data Byte 1 CFG1 8Bh 0x00
07h R/W Config Data Byte 2 CFG2 10h 0x00
08h R/W Config Data Byte 3 CFG3 00h 0x00
09h R/W Non-Removable Devices NRD 00h 0x00
0Ah R/W Port Disable (Self) PDS 08h 0x00
0Bh R/W Port Disable (Bus) PDB 08h 0x00
0Ch R/W Max Power (Self) MAXPS 01h 0x00
0Dh R/W Max Power (Bus) MAXPB 64h 0x00
0Eh R/W Hub Controller Max Current
(Self)
HCMCS 01h 0x00
0Fh R/W Hub Controller Max Current
(Bus)
HCMCB 64h 0x00
10h R/W Power-on Time PWRT 32h 0x00
11h-F5h R/W Reserved N/A 01h 0x00
F6h R/W Boost_Up BOOSTUP 00h 0x00
F7h R/W Reserved N/A 00h 0x00
F8h R/W Boost_2:0 BOOST20 00h 0x00
F9h R/W Reserved N/A 00h 0x00
FAh R/W Port Swap PRTSP 00h 0x00
FBh R/W Port Remap 12 PRTR12 00h 0x00
FC-FEh R/W Reserved N/A 00h 0x00
FFh R/W Status/Command
Note: SMBus register only
STCD 00h 0x00
BIT
NUMBER BIT NAME DESCRIPTION
7:0 VID_LSB Least Significant Byte of the Vendor ID. This is a 16-bit value that uniquely
identifies the Vendor of the user device (assigned by USB-Interface Forum).
This field is set by the OEM using either the SMBus or EEPROM interface
options.
Table 4.1 Internal Default, EEPROM and SMBus Register Memory Map (continued)
REG
ADDR R/W REGISTER NAME ABBR
INTERNAL
DEFAULT ROM
SMBUS AND
EEPROM POR
VALUES