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USB2640I Datasheet(PDF) 29 Page - Microchip Technology

Part # USB2640I
Description  Industrial Temperature USB 2.0 Flash Media Controller and USB Hub Combo
PDF  59 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB2640I Datasheet(HTML) 29 Page - Microchip Technology

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 2015-2021 Microchip Technology Inc.
DS00001948C-page 29
USB2640i/USB2641i
7.3.4.1
A0h-A1h: Memory Stick Device Power
7.3.4.2
A2h-A3h: Not Applicable
7.3.4.3
A4h-A5h: Smart Media Device Power
7.3.4.4
A6h-A7h: Secure Digital/MultiMediaCard Device Power
7.3.4.5
A8h: LED Blink Interval (1 byte)
FET
Type
Bits
Bit Type
Description
0
FET Lo Byte
MS_PWR_LB
3:0
Low Nibble
0000b Disabled
1
7:4
High Nibble
2FET Hi Byte
MS_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
1:0
Not Applicable
Not applicable to USB2640i/USB2641i.
FET
Type
Bits
Bit Type
Description
0
FET Lo Byte
SM_PWR_LB
3:0
Low Nibble
0000b Disabled
1
7:4
High Nibble
2FET 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
2FET 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. Bit 7 indicates an idle state:
‘0’ - Off
’1’ - On
Bits 0-6 are used to determine the blink interval up to a max of 128 x 50 ms.



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