PIC24FJ128GB MICROCHIP [Microchip Technology], PIC24FJ128GB Datasheet - Page 217

• Manufacturer Part Number: PIC24FJ128GB
• Description: 64/80/100-Pin, 16-Bit Flash Microcontrollers with USB On-The-Go (OTG)
• Manufacturer: MICROCHIP [Microchip Technology]

17.7.2
REGISTER 17-14: U1OTGIR: USB OTG INTERRUPT STATUS REGISTER (HOST MODE ONLY)
© 2008 Microchip Technology Inc.
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15-8
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Note 1:
R/K-0, HS
Note:
IDIF
U-0
—
V
USB INTERRUPT REGISTERS
Individual bits can only be cleared by writing a ‘1’ to the bit position as part of a word write operation on the
entire register. Using Boolean instructions or bitwise operations to write to a single bit position will cause
all set bits at the moment of the write to become cleared.
BUS
Unimplemented: Read as ‘0’
IDIF: ID State Change Indicator bit
1 = Change in ID state detected
0 = No ID state change
T1MSECIF: 1 Millisecond Timer bit
1 = The 1 millisecond timer has expired
0 = The 1 millisecond timer has not expired
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
0 = USB line state has not been stable for 1 ms
ACTVIF: Bus Activity Indicator bit
1 = Activity on the D+/D- lines or V
0 = No activity on the D+/D- lines or V
SESVDIF: Session Valid Change Indicator bit
1 = V
0 = V
SESENDIF: B-Device V
1 = V
0 = V
Unimplemented: Read as ‘0’
VBUSVDIF A-Device V
1 = V
0 = No V
T1MSECIF
R/K-0, HS
threshold crossings may be either rising or falling.
last time
Specification)
Specification)
U-0
—
BUS
BUS
BUS
BUS
BUS
BUS
change on B-device detected; V
has crossed V
has not crossed V
has not crossed V
change on A-device detected; V
change on A-device detected
K = Write ‘1’ to clear bit
‘1’ = Bit is set
R/K-0, HS
LSTATEIF
(1)
(1)
U-0
—
BUS
BUS
A
_
SESS
Change Indicator bit
A
Change Indicator bit
A
_
_
SESS
SESS
R/K-0, HS
PIC24FJ256GB110 FAMILY
_
ACTVIF
END
U-0
—
BUS
Preliminary
_
_
END
END
(as defined in the USB OTG Specification)
BUS
detected
BUS
BUS
detected
U = Unimplemented bit, read as ‘0’
HS = Hardware Settable bit
‘0’ = Bit is cleared
R/K-0, HS
SESVDIF
has crossed V
has crossed V
U-0
—
SESENDIF
R/K-0, HS
B
A
_
_
SESS
VBUS
U-0
—
_
_
END
VLD
(as defined in the USB OTG
x = Bit is unknown
(as defined in the USB OTG
U-0
U-0
—
—
(1)
DS39897B-page 215
VBUSVDIF
R/K-0, HS
U-0
—
bit 8
bit 0