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Section 22 USB Function Module (USB)
22.3.4
Interrupt Select Register 0 (ISR0)
ISR0 selects the vector numbers of the interrupt requests indicated in interrupt flag register 0
(IFR0). If the USB issues an interrupt request to the INTC when a bit in ISR0 is cleared to 0, the
interrupt corresponding to the bit will be USBINTN2. If the USB issues an interrupt request to the
INTC when a bit in ISR0 is set to 1, the corresponding interrupt will be USBINTN3.
Bit
Bit Name
7
BRST
6
EP1 FULL
5
EP2 TR
4
EP2 EMPTY 0
3
SETUP TS
2
EP0o TS
1
EP0i TR
0
EP0i TS
Rev. 1.00 Mar. 12, 2008 Page 840 of 1178
REJ09B0403-0100
Initial
Value
R/W
Description
0
R/W
Bus Reset
0
R/W
EP1 FIFO Full
0
R/W
EP2 Transfer Request
R/W
EP2 FIFO Empty
0
R/W
Setup Command Receive Complete
0
R/W
EP0o Receive Complete
0
R/W
EP0i Transfer Request
0
R/W
EP0i Transmission Complete
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