PIC24FJ128GB MICROCHIP [Microchip Technology], PIC24FJ128GB Datasheet - Page 220
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PIC24FJ128GB
Manufacturer Part Number
PIC24FJ128GB
Description
64/80/100-Pin, 16-Bit Flash Microcontrollers with USB On-The-Go (OTG)
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC24FJ128GB.pdf
(328 pages)
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PIC24FJ256GB110 FAMILY
REGISTER 17-17: U1IR: USB INTERRUPT STATUS REGISTER (HOST MODE ONLY)
DS39897B-page 218
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
R/K-0, HS
Note:
STALLIF
U-0
—
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.
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
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
0 = No peripheral attachement detected
RESUMEIF: Resume Interrupt bit
1 = A K-state is observed on the D+ or D- pin for 2.5 μs (differential ‘1’ for low speed, differential ‘0’ for
0 = No K-state observed
IDLEIF: Idle Detect Interrupt bit
1 = Idle condition detected (constant Idle state of 3 ms or more)
0 = No Idle condition detected
TRNIF: Token Processing Complete Interrupt bit
1 = Processing of current token is complete; read U1STAT register for endpoint information
0 = Processing of current token not complete; clear U1STAT register or load next token from U1STAT
SOFIF: Start-Of-Frame Token Interrupt bit
1 = A Start-Of-Frame token received by the peripheral or the Start-Of-Frame threshold reached by the
0 = No Start-Of-Frame token received or threshold reached
UERRIF: USB Error Condition Interrupt bit
1 = An unmasked error condition has occurred; only error states enabled in the U1EIE register can set
0 = No unmasked error condition has occurred
DETACHIF: Detach Interrupt bit
1 = A peripheral detachment has been detected by the module; Reset state must be cleared before
0 = No peripheral detachment detected. Individual bits can only be cleared by writing a ‘1’ to the bit
ATTACHIF
R/K-0, HS
transaction in Device mode
has been no bus activity for 2.5 μs
full speed)
this bit
U-0
—
host
this bit can be reasserted
position as part of a word write operation on the entire register. Using Boolean instructions or bit-
wise operations to write to a single bit position will cause all set bits at the moment of the write to
become cleared.
K = Write ‘1’ to clear bit
‘1’ = Bit is set
RESUMEIF
R/K-0, HS
U-0
—
R/K-0, HS
IDLEIF
U-0
—
Preliminary
U = Unimplemented bit, read as ‘0’
HS = Hardware Settable bit
‘0’ = Bit is cleared
R/K-0, HS
TRNIF
U-0
—
R/K-0, HS
SOFIF
U-0
—
© 2008 Microchip Technology Inc.
x = Bit is unknown
UERRIF
U-0
R-0
—
DETACHIF
R/K-0, HS
U-0
—
bit 8
bit 0
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