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USB4640i датащи(PDF) 38 Page - SMSC Corporation

номер детали USB4640i
подробное описание детали  High Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller
PDF  64 Pages
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производитель  SMSC [SMSC Corporation]
домашняя страница  http://www.smsc.com
Logo SMSC - SMSC Corporation

USB4640i датащи(HTML) 38 Page - SMSC Corporation

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High Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller
Datasheet
Revision 1.0 (06-09-09)
38
SMSC USB4640/USB4640i
DATASHEET
8.4.2.3
A4h-A5h: Smart Media Device Power Configuration
8.4.2.4
A6h-A7h: Secure Digital Device Power Configuration
8.4.2.5
A8h: LED Blink Interval
8.4.2.6
A9h: LED Blink Duration
FET
TYPE
BITS
BIT TYPE
DESCRIPTION
0
FET Lo Byte
SM_PWR_LB
3:0
Low Nibble
0000b Disabled
1
7:4
High Nibble
2
FET Hi Byte
SM_PWR_HB
3:0
Low Nibble
0000b Disabled
0001b External FET enabled
1000b Internal FET with 100 mA power limit
1010b Internal FET with 200 mA power limit
3
7:4
High Nibble
0000b Disabled
FET
TYPE
BITS
BIT TYPE
DESCRIPTION
0
FET Lo Byte
SD_PWR_LB
3:0
Low Nibble
0000b Disabled
1
7:4
High Nibble
2
FET Hi Byte
SD_PWR_HB
3:0
Low Nibble
0000b Disabled
0001b External FET enabled
1000b Internal FET with 100 mA power limit
1010b Internal FET with 200 mA power limit
3
7:4
High Nibble
0000b Disabled
BYTE
NAME
DESCRIPTION
0
LED_BLK_INT
The blink rate is programmable in 50 ms intervals. The high bit (7) indicates
an idle state:
‘0’ - Off
‘1’ - On
The remaining bits (6:0) are used to determine the blink interval up to a max
of 128 x 50 ms.
BYTE
NAME
DESCRIPTION
1
LED_BLK_DUR
LED Blink After Access. This byte is used to designate the number of
seconds that the GPIO1 LED will continue to blink after a drive access.
Setting this byte to "05" will cause the GPIO 1 LED to blink for 5 seconds
after a drive access.



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