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USB3503 Datenblatt(PDF) 31 Page - Microchip Technology

Teilenummer USB3503
Bauteilbeschribung  USB 2.0 HSIC High-Speed Hub Controller Optimized
PDF  73 Pages
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Hersteller  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB3503 Datenblatt(HTML) 31 Page - Microchip Technology

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 2011-2015 Microchip Technology Inc.
DS00001584B-page 31
USB3503
5.3.31
REGISTER E9H: SERIAL PORT INTERRUPT MASK - INT_MASK
Default = 0x00h
5.3.32
REGISTER EEH: CONFIGURE PORTABLE HUB - CFGP
Default = 0x00h - Corresponds to 95ms startup & Phone RefClks available
Bit Number
Bit Name
Description
7:5
Reserved
Reserved
4
HubSuspMask 1 = INT_N pin is asserted low when Hub enters suspend
0 = INT_N pin is not affected by Hub entering suspend
3
HubCfgMask
1 = INT_N pin is asserted low when Hub configured by USB Host
0 = INT_N pin is not affected by Hub configuration event
2
PrtPwrMask
1 = INT_N pin is asserted low when Port Power register has been updated by
USB Host
0 = INT_N pin is not affected by Port Power register
1:0
Reserved
Reserved
Bit Number
Bit Name
Description
7
ClkSusp
(Read/Write)
1 = Force device to run internal clock even during USB suspend (will cause
device to violate USB suspend current limit - intended for test or self-powered
applications which require use of serial port during USB session.)
0 = Allow device to gate off its internal clocks during suspend mode in order to
meet USB suspend current requirements.
6
IntSusp
(Read/Write)
1 = INT_N pin function is a level sensitive USB suspend interrupt indication.
Allows system to adjust current consumption to comply with USB specification
limits when hub is in the USB suspend state.
0 = INT_N pin function retains event sensitive role of a general serial port
interrupt.
See Section 3.3.4, "Interrupt," on page 13 for more information.
5:4
CfgTout
(Read Only)
Specifies timeout value for allowing SOC to configure the device. Corresponds
to the Thubconfig parameter. See Section TABLE 4-2:, "Timing Parameters for
Hub Stages".
‘00’ = 95ms - Use to meet legacy 100ms connect timing
3
Reserved
Reserved
2:0
Reserved
Reserved



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