
2011-2012 Microchip Technology Inc.
Preliminary
DS61168D-page 123
PIC32MX1XX/2XX
REGISTER 10-1:
U1OTGIR: USB OTG INTERRUPT STATUS REGISTER
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31:24
U-0
—
23:16
U-0
—
15:8
U-0
—
7:0
R/WC-0, HS
U-0
R/WC-0, HS
IDIF
T1MSECIF
LSTATEIF
ACTVIF
SESVDIF
SESENDIF
—
VBUSVDIF
Legend:
WC = Write ‘1’ to clear
HS = Hardware Settable bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 31-8 Unimplemented: Read as ‘0’
bit 7
IDIF: ID State Change Indicator bit
1 = Change in ID state detected
0 = No change in ID state detected
bit 6
T1MSECIF: 1 Millisecond Timer bit
1 = 1 millisecond timer has expired
0 = 1 millisecond timer has not expired
bit 5
LSTATEIF: Line State Stable Indicator bit
1 = USB line state 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-, ID or VBUS pins has caused the device to wake-up
0 = Activity has not been detected
bit 3
SESVDIF: Session Valid Change Indicator bit
1 =VBUS voltage has dropped below the session end level
0 =VBUS voltage has not dropped below the session end level
bit 2
SESENDIF: B-Device VBUS Change Indicator bit
1 = A change on the session end input was detected
0 = No change on the session end input was detected
bit 1
Unimplemented: Read as ‘0’
bit 0
VBUSVDIF: A-Device VBUS Change Indicator bit
1 = Change on the session valid input detected
0 = No change on the session valid input detected