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USB2422/MJ 数据表(PDF) 33 Page - SMSC Corporation

部件名 USB2422/MJ
功能描述  2-Port USB 2.0 Hi-Speed Hub Controller
PDF  51 Pages
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制造商  SMSC [SMSC Corporation]
网页  http://www.smsc.com
标志 SMSC - SMSC Corporation

USB2422/MJ 数据表(HTML) 33 Page - SMSC Corporation

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2-Port USB 2.0 Hi-Speed Hub Controller
Datasheet
SMSC USB2422
33
Revision 1.0 (06-04-13)
DATASHEET
4.4.16
Hub Controller Max Power for Bus-Powered Operation Register
(HCMCB)
4.4.17
Power-On Time Register (PWRT)
4.4.18
Language ID High Register (LANGIDH)
4.4.19
Language ID Low Register (LANGIDL)
Address:
0Fh
Size:
8 bits
BITS
DESCRIPTION
TYPE
DEFAULT
7:0
Hub Controller Max Power Bus-Powered (MAX_PWR_BP)
Value in 2mA increments that the Hub consumes from an upstream port
(VBUS) when operating as a bus- powered hub. This value will include the
hub silicon along with the combined power consumption (from VBUS) of all
associated circuitry on the board. This value will NOT include the power
consumption of a permanently attached peripheral if the hub is configured
as a compound device.
R/W
00h
Address:
10h
Size:
8 bits
BITS
DESCRIPTION
TYPE
DEFAULT
7:0
Power-On Time (POWER_ON_TIME)
The length of time that is takes (in 2 ms intervals) from the time the host
initiated power-on sequence begins on a port until power is good on that
port. System software uses this value to determine how long to wait before
accessing a powered-on port.
R/W
00h
Address:
11h
Size:
8 bits
BITS
DESCRIPTION
TYPE
DEFAULT
7:0
USB Language ID High (LANG_ID_H)
Upper 8 bits of the 16-bit language ID field.
R/W
00h
Address:
12h
Size:
8 bits
BITS
DESCRIPTION
TYPE
DEFAULT
7:0
USB Language ID Low (LANG_ID_L)
Lower 8 bits of the 16-bit language ID field.
R/W
00h



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