Industrial Temperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller
Datasheet
Revision 1.97 (08-11-08)
14
SMSC USB2512Ai
DATASHEET
4.2.1.1
Register 00h: Vendor ID (LSB)
03h
R/W
PID MSB
PIDM
25h
0x00
04h
R/W
DID LSB
DIDL
A0h
0x00
05h
R/W
DID MSB
DIDM
0Ah
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
00h
0x00
0Bh
R/W
Port Disable (Bus)
PDB
00h
0x00
0Ch
R/W
Max Power (Self)
MAXPS
01h
0x00
0Dh
R/W
Max Power (Bus)
MAXPB
32h
0x00
0Eh
R/W
Hub Controller Max Current
(Self)
HCMCS
01h
0x00
0Fh
R/W
Hub Controller Max Current
(Bus)
HCMCB
32h
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 OR
VALUES
