USB3803 datasheet(26/99 Pages) MICROCHIP

26 / 99 page

USB3803

DS00001691B-page 26

 2014-2015 Microchip Technology Inc.

5.3.10

5.3.11

Default = 0x00h

2:1

Reserved

STRING_EN

Enables String Descriptor Support

‘0’ = String Support Disabled

‘1’ = String Support Enabled

Bit Number

Bit Name

Description

7:0

NR_DEVICE

Non-Removable Device: Indicates which port(s) include non- removable

devices.

‘0’ = port is removable

‘1’ = port is non- removable.

Informs the Host if one of the active physical ports has a permanent device that

is undetachable from the Hub. (Note: The device must provide its own descriptor

data.)

Bit 7= Reserved

Bit 6= Reserved

Bit 5= Reserved

Bit 4= Reserved

Bit 3= Port 3 non-removable.

Bit 2= Port 2 non-removable.

Bit 1= Port 1 non removable.

Bit 0= Reserved

Bit Number

Bit Name

Description

7:0

PORT_DIS_SP Port Disable Self-Powered: Disables 1 or more ports.

‘0’ = port is available

‘1’ = port is disabled.

During Self-Powered operation, when PRTMAP_EN = ‘0’, this selects the ports

which will be permanently disabled, and are not available to be enabled or enu-

merated by a Host Controller. The ports can be disabled in any order, the inter-

nal logic will automatically report the correct number of enabled ports to the USB

Host, and will reorder the active ports in order to ensure proper function.

Bit 7= Reserved

Bit 6= Reserved

Bit 5= Reserved

Bit 4= Reserved

Bit 3= Port 3 Disable.

Bit 2= Port 2 Disable.

Bit 1= Port 1 Disable.

Bit 0= Reserved

USB3803 Datasheet(PDF) 26 Page - Microchip Technology

USB3803 Datasheet(HTML) 26 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 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

Datasheet Download

Link URL