USB2514I SMSC Corporation, USB2514I Datasheet - Page 19

• Manufacturer Part Number: USB2514I
• Description: Industrial Temperature Rated USB 2.0 High-Speed 4-Port Hub Controller
• Manufacturer: SMSC Corporation

Industrial Temperature Rated USB 2.0 High-Speed 4-Port Hub Controller
Datasheet
SMSC USB2514i
4.3
4.3.1
ADDR
REG
0Ch
0Dh
0Ah
0Bh
0Eh
0Fh
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
10h
11h
12h
13h
14h
The SMSC Hub can be configured via a 2-wire (I2C) EEPROM (256x8). (Please see
specific details on how to enable configuration via an I2C EEPROM).
The Internal state-machine will (when configured for EEPROM support) read the external EEPROM for
configuration data. The hub will then “attach” to the upstream USB host.
Note: The Hub does not have the capacity to write, or “Program,” an external EEPROM. The Hub
Please see Internal Register Set (Common to EEPROM and SMBus) for a list of data fields available.
Internal Register Set (Common to EEPROM and SMBus)
EEPROM Interface
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Table 4.2 Internal Default, EEPROM and SMBus Register Memory Map
only has the capability to read external EEPROMs. The external eeprom will be read (even if
it is blank or non-populated), and the hub will be “configured” with the values that are read.
Hub Controller Max Current
Hub Controller Max Current
Non-Removable Devices
Config Data Byte 1
Config Data Byte 2
Config Data Byte 3
REGISTER NAME
Port Disable (Self)
Port Disable (Bus)
Max Power (Self)
Max Power (Bus)
MFR_STR_LEN
PRD_STR_LEN
Power-on Time
LANG_ID_H
LANG_ID_L
DID MSB
VID MSB
PID MSB
VID LSB
PID LSB
DID LSB
(Self)
(Bus)
DATASHEET
19
LANGIDH
LANGIDL
HCMCS
HCMCB
MAXPS
MAXPB
MFRSL
PRDSL
ABBR
PWRT
CFG1
CFG2
CFG3
VIDM
PIDM
DIDM
VIDL
PIDL
DIDL
NRD
PDS
PDB
DEFAULT ROM
INTERNAL
9Bh
24h
04h
14h
25h
00h
00h
10h
00h
00h
00h
00h
01h
64h
01h
64h
32h
00h
00h
00h
00h
Revision 1.98 (11-19-07)
EEPROM POR
SMBUS AND
VALUES
Table 3.1
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
for