Microchip Technology MA330027 Data Sheet

 2009-2012 Microchip Technology Inc.

DS70616G-page 397

U-0

U-0

U-0

U-0

U-0

U-0

U-0

U-0

—

—

—

—

—

—

—

—

bit 15

bit 8

R/K-0, HS

R/K-0, HS

R/K-0, HS

R/K-0, HS

R/K-0, HS

R/K-0, HS

U-0

R/K-0, HS

IDIF

T1MSECIF

LSTATEIF

ACTVIF

SESVDIF

SESENDIF

—

VBUSVDIF

bit 7

bit 0

U = Unimplemented bit, read as ‘0’

R = Readable bit

K = Write ‘1’ to clear bit

HS = Hardware Settable bit

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 15-8

Unimplemented: Read as ‘0’

bit 7

IDIF: ID State Change Indicator bit
1 = Change in ID state is detected
0 = No ID state change

bit 6

T1MSECIF: 1 Millisecond Timer bit 
1 = The 1 millisecond timer has expired
0 = The 1 millisecond timer has not expired

bit 5

LSTATEIF: Line State Stable Indicator bit 
1 = USB line state (as defined by the SE0 and JSTATE bits) has been stable for 1 ms, but different from

last time

0 = USB line state has not been stable for 1 ms

bit 4

ACTVIF: Bus Activity Indicator bit 
1 = Activity on the D+/D- lines or V

BUS

 is detected

0 = No activity on the D+/D- lines or V

BUS

 is detected

bit 3

SESVDIF: Session Valid Change Indicator bit 
1  = V

BUS

 has crossed V

A

_

SESS

_

VLD

 (as defined in the USB OTG Specification)

0  = V

BUS

 has not crossed V

A

_

SESS

_

VLD

bit 2

SESENDIF: B-Device V

BUS

 Change Indicator bit 

1  = V

BUS

 change on B-device is detected; V

BUS

 has crossed V

B

_

SESS

_

END

 (as defined in the USB

OTG Specification)

0  = V

BUS

 has not crossed V

A

_

SESS

_

END

bit 1

Unimplemented: Read as ‘0’

bit 0

VBUSVDIF: A-Device V

BUS

 Change Indicator bit 

1  = V

BUS

 change on A-device is detected; V

BUS

 has crossed V

A

_

VBUS

_

VLD

 (as defined in the USB

OTG Specification)

0  = No  V

BUS

 change on A-device is detected

Note 1: V

BUS

 threshold crossings may be either rising or falling.