PIC24EP256GU810-I Datasheet, PDF (400/622 Pages) Electronic Film Capacitors, Inc. – 16-Bit Microcontrollers and Digital Signal Controllers with High-Speed PWM, USB and Advanced Analog

dsPIC33EPXXX(GP/MC/MU)806/810/814 and PIC24EPXXX(GP/GU)810/814
REGISTER 22-15: UxIR: USB INTERRUPT STATUS REGISTER (HOST MODE ONLY)
U-0
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
—
bit 15
U-0
—
bit 8
R/K-0, HS
STALLIF
bit 7
R/K-0, HS R/K-0, HS R/K-0, HS
ATTACHIF RESUMEIF IDLEIF
R/K-0, HS
TRNIF
R/K-0, HS
SOFIF
R-0
UERRIF
R/K-0, HS
DETACHIF
bit 0
Legend:
R = Readable bit
-n = Value at POR
U = Unimplemented bit, read as ‘0’
K = Write ‘1’ to clear bit
HS = Hardware Settable bit
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-8
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Unimplemented: Read as ‘0’
STALLIF: STALL Handshake Interrupt bit
1 = A STALL handshake was sent by the peripheral device during the handshake phase of the
transaction in Device mode
0 = A STALL handshake has not been sent
ATTACHIF: Peripheral Attach Interrupt bit
1 = A peripheral attachment has been detected by the module; set if the bus state is not SE0 and there
has been no bus activity for 2.5 s
0 = No peripheral attachment is detected
RESUMEIF: Resume Interrupt bit
1 = A K-State is observed on the D+ or D- pin for 2.5 s (differential ‘1’ for low speed, differential ‘0’ for
full speed)
0 = No K-State is observed
IDLEIF: Idle Detect Interrupt bit
1 = Idle condition is detected (constant Idle state of 3 ms or more)
0 = No Idle condition is detected
TRNIF: Token Processing Complete Interrupt bit
1 = Processing of current token is complete; read USTAT register for endpoint BDT information
0 = Processing of current token is not complete; clear USTAT register or load next token from STAT
SOFIF: Start-of-Frame Token Interrupt bit
1 = Start-of-Frame threshold is reached by the host
0 = No Start-of-Frame token threshold is reached
UERRIF: USB Error Condition Interrupt bit
1 = An unmasked error condition has occurred; only error states enabled in the UxEIE register can set
this bit
0 = No unmasked error condition has occurred
DETACHIF: Detach Interrupt bit
1 = A peripheral detachment has been detected by the module
0 = No peripheral detachment has been detected
DS70616G-page 400
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