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USB2517 Fiches technique(PDF) 26 Page - Microchip Technology

No de pièce USB2517
Description  USB 2.0 Hi-Speed 7-Port Hub Controller
PDF  58 Pages
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Fabricant  MICROCHIP [Microchip Technology]
Site Internet  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB2517 Fiches technique(HTML) 26 Page - Microchip Technology

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USB2517/USB2517I
DS00001598B-page 26
 2013-2016 Microchip Technology Inc.
7.2.1.10
Register 09h: Non-Removable Device
7.2.1.11
Register 0Ah: Port Disable For Self Powered Operation
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 ports has a permanent device that is
undetachable from the Hub. (Note: The device must provide its own descrip-
tor data.)
When using the internal default option, the NON_REM[1:0] pins will designate
the appropriate ports as being non- removable.
Bit 7= 1; Port 7 non-removable
Bit 6= 1; Port 6 non-removable
Bit 5= 1; Port 5 non-removable
Bit 4= 1; Port 4 non-removable
Bit 3= 1; Port 3 non-removable
Bit 2= 1; Port 2 non-removable
Bit 1= 1; Port 1 non-removable
Bit 0 is Reserved, always = ‘0’
Bit
Number
Bit Name
Description
7:0
PORT_DIS_SP
Port Disable Self-Powered: Disables 1 or more contiguous ports. ‘0’ = port is
available, ‘1’ = port is disabled.
During Self-Powered operation when remapping mode is disabled (PRT-
MAP_EN='0'), this selects the ports which will be permanently disabled, and
are not available to be enabled or enumerated by a Host Controller. The ports
can be disabled in any order, the internal 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= 1; Port 7 is disabled
Bit 6= 1; Port 6 is disabled
Bit 5= 1; Port 5 is disabled
Bit 4= 1; Port 4 is disabled
Bit 3= 1; Port 3 is disabled
Bit 2= 1; Port 2 is disabled
Bit 1= 1; Port 1 is disabled
Bit 0 is Reserved, always = ‘0’



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