USB2642 datasheet(25/56 Pages) MICROCHIP

25 / 56 page

 2014-2015 Microchip Technology Inc.

DS00001578C-page 25

USB2642

7.4.2.9

9Ch-9Fh: Attribute Byte Descriptions

Byte

Name

Bit

Number

Description

ATT_LB

3:0

Always read as 0

Inquire Manufacturer and Product ID Strings

: use the Inquiry Manufacturer and Product ID Strings.

: (default) - use the USB Descriptor Manufacturer and Product ID Strings.

Always read as 0

Reverse SD Card Write Protect Sense

: (default) - SD cards will be write protected when SW_nWP is high, and

writable when SW_nWP is low.

: SD cards will be write protected when SW_nWP is low, and writable

when SW_nWP is high.

Always read as 0

ATT_HLB

3:0

Always read as 0

Activity LED True Polarity

: Activity LED to Low True

: (default) Activity LED polarity to High True

Common Media Insert/Media Activity LED

: the activity LED will function as a common media inserted/media access

LED.

: (default) the activity LED will remain in its idle state until media is

accessed.

Always read as 0

Reverse SD2 Card Write Protect Sense

: (default) SD cards in LUN 1 will be write protected when SW_nWP is

high, and writable when SW_nWP is low.

: SD cards in LUN 1 will be write protected when SW_nWP is low, and

writable when SW_nWP is high.

ATT_LHB

Attach on Card Insert/Detach on Card Removal

: attach on Insert is enabled

: (default) - attach on Insert is disabled

Always read as 0

Use LUN Power Configuration

: custom LUN Power Configuration stored in the NVSTORE is used

: (default) - default LUN Power Configuration is used.

7:3

Always read as 0

ATT_HB

7:0

Always read as 0

USB2642 Datasheet(PDF) 25 Page - Microchip Technology

USB2642 Datasheet(HTML) 25 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56

Datasheet Download

Link URL