USB334X datasheet(67/92 Pages) MICROCHIP

67 / 92 page

 2009-2018 Microchip Technology Inc.

DS00002646A-page 67

USB334x

7.1.1.8

USB Interrupt Enable Rising

Address = 0D-0Fh (read), 0Dh (write), 0Eh (set), 0Fh (clear)

7.1.1.9

USB Interrupt Enable Falling

Address = 10-12h (read), 10h (write), 11h (set), 12h (clear)

DrvVbus

rd/w/s/c

Enables external 5 volt supply to drive 5 volts on

VBUS. This signal is or’ed with DrvVbusExternal.

0b: Do not drive Vbus.

1b: Drive Vbus

DrvVbusExternal

rd/w/s/c

Enables external 5 volt supply to drive 5 volts on

VBUS. This signal is or’ed with DrvVbus.

0b: Do not drive Vbus

1b: Drive Vbus

UseExternalVbus

Indicator

rd/w/s/c

Tells the PHY to use an external VBUS over-current

or voltage indicator. This function is detailed in

Section 5.7.2, "VBUS Monitoring and VBUS Pulsing,"

on page 35.

0b: Use the internal VbusValid comparator

1b: Use the EXTVBUS input as for VbusValid signal.

Note:

The EXTVBUS signal is always high on the

USB334x.

Field Name

Bit

Access

Default

Description

HostDisconnect Rise

rd/w/s/c

Generate an interrupt event notification when

Hostdisconnect changes from low to high. Applicable

only in host mode.

VbusValid Rise

rd/w/s/c

Generate an interrupt event notification when

Vbusvalid changes from low to high.

SessValid Rise

rd/w/s/c

Generate an interrupt event notification when

SessValid changes from low to high.

SessEnd Rise

rd/w/s/c

Generate an interrupt event notification when

SessEnd changes from low to high.

IdGnd Rise

rd/w/s/c

Generate an interrupt event notification when IdGnd

changes from low to high.

Reserved

7:5

Read only, 0.

Field Name

Bit

Access

Default

Description

HostDisconnect Fall

rd/w/s/c

Generate an interrupt event notification when

Hostdisconnect changes from high to low. Applicable

only in host mode.

VbusValid Fall

rd/w/s/c

Generate an interrupt event notification when

Vbusvalid changes from high to low.

SessValid Fall

rd/w/s/c

Generate an interrupt event notification when

SessValid changes from high to low.

Field Name

Bit

Access

Default

Description

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