Table 7.3 other internal configurations, Datasheet – SMSC USB2640i User Manual
Page 30
Ultra Fast USB 2.0 Multi-Format Flash Media Controller/USB Hub Combo
Revision 2.0 (10-03-08)
30
SMSC USB2640/USB2641
DATASHEET
7.3.2.1
0h-19h: USB Serial Number Option
7.3.2.2
1Ah-1Bh: USB Vendor ID Option
7.3.2.3
1Ch-1Dh: USB Product ID Option
7.3.2.4
1Eh-21h: USB Language Identifier Option
Table 7.3 Other Internal Configurations
REG ADDR
REGISTER NAME
REGISTER DESCRIPTION
DEFAULT VALUE
F4h
MS_SD_CLK_LIM
MS/SD Clock Limit for
Flash Media Controller
00h
F5h
N/A
Reserved
66h
F6h
N/A
Reserved
00h
F7-FBh
N/A
Reserved
00h
FCh-FFh
NVSTORE_SIG
Non-volatile storage signature
(“ATA2”)
“ATA2”
BYTE
NUMBER
BYTE NAME
DESCRIPTION
25:0
USB_SER_NUM
Default Value is: UNICODE "0000002640001".
Maximum string length is 12 hex digits. Must be unique to each device.
BYTE
NUMBER
BYTE NAME
DESCRIPTION
1:0
USB_VID
This ID is unique for every vendor. The vendor ID is assigned by the USB
Implementers Forum.
BYTE
NUMBER
BYTE NAME
DESCRIPTION
1:0
USB_PID
This ID is unique for every product. The product ID is assigned by the vendor.
BYTE
NUMBER
BYTE NAME
DESCRIPTION
3:0
USB_LANG_ID
USB LANGUAGE ID
English Language Code = ‘0409’. Please refer to the USB 2.0 specification
for Other Language Codes.