PIC18F2450/4450
The values in this register only affect the propagation
of an interrupt condition to the microcontroller’s
interrupt logic. The flag bits are still set by their
interrupt conditions, allowing them to be polled and
serviced without actually generating an interrupt.
14.5.2
USB INTERRUPT ENABLE
REGISTER (UIE)
The USB Interrupt Enable register (Register 14-8)
contains the enable bits for the USB status interrupt
sources. Setting any of these bits will enable the
respective interrupt source in the UIR register.
REGISTER 14-8: UIE: USB INTERRUPT ENABLE REGISTER
U-0
—
R/W-0
SOFIE
R/W-0
R/W-0
R/W-0
TRNIE
R/W-0
R/W-0
R/W-0
STALLIE
IDLEIE
ACTVIE
UERRIE
URSTIE
bit 7
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared x = Bit is unknown
bit 7
bit 6
Unimplemented: Read as ‘0’
SOFIE: START-OF-FRAME Token Interrupt Enable bit
1= START-OF-FRAME token interrupt enabled
0= START-OF-FRAME token interrupt disabled
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
STALLIE: STALL Handshake Interrupt Enable bit
1= STALL interrupt enabled
0= STALL interrupt disabled
IDLEIE: Idle Detect Interrupt Enable bit
1= Idle detect interrupt enabled
0= Idle detect interrupt disabled
TRNIE: Transaction Complete Interrupt Enable bit
1= Transaction interrupt enabled
0= Transaction interrupt disabled
ACTVIE: Bus Activity Detect Interrupt Enable bit
1= Bus activity detect interrupt enabled
0= Bus activity detect interrupt disabled
UERRIE: USB Error Interrupt Enable bit
1= USB error interrupt enabled
0= USB error interrupt disabled
URSTIE: USB Reset Interrupt Enable bit
1= USB Reset interrupt enabled
0= USB Reset interrupt disabled
© 2006 Microchip Technology Inc.
Advance Information
DS39760A-page 145
MICROCHIP [ MICROCHIP ]
