Datasheet

Section 14 Universal Serial Bus (USB)
Rev.7.00 Dec. 24, 2008 Page 484 of 698
REJ09B0074-0700
Bit Bit Name Initial Value R/W Description
2 SPRSi 0 R/(W)* Suspend/Resume Interrupt
Set to 1 if a transition from normal state to suspend
state or suspend state to normal state has occurred.
The corresponding interrupt output is IRQ6. This bit
can be used to cancel power-down mode at resuming.
1 VBUSs 0 R VBUS Status
VBUSs is a status bit to indicate the VBUS state by
the USB cable connection or disconnection. However,
an interrupt cannot be requested by VBUSs.
0: Indicates that the VBUS (USB cable) bus is
disconnected.
1: Indicates that the VBUS (USB cable) bus is
connected.
0 VBUSi 0 R/(W)* VBUS Interrupt
Set to 1 if a VBUS state changes by the USB cable
connection or disconnection. The corresponding
interrupt output is EXIRQ0 or EXIRQ1.
Note:* The write value should always be 0 to clear this flag.
14.3.19 USB Interrupt Enable Register 0 (UIER0)
UIER0 enables the interrupt request indicated in the interrupt flag register 0 (UIFR0). When an
interrupt flag is set while the corresponding bit in UIER0 is set to 1, an interrupt is requested by
asserting the corresponding EXIRQ0 or EXIRQ1. Either EXIRQ0 or EXIRQ1 must be selected by
the interrupt select register 0 (UISR0).
Bit Bit Name Initial Value R/W Description
7 BRSTE 0 R/W Enables the BRST interrupt.
6 — 0 R Reserved
This bit is always read as 0.
5 EP3TRE 0 R/W Enables the EP3TR interrupt.
4 EP3TSE 0 R/W Enables the EP3TS interrupt.
3 EP0oTSE 0 R/W Enables the EP0oTS interrupt.
2 EP0iTRE 0 R/W Enables the EP0iTR interrupt.
1 EP0iTSE 0 R/W Enables the EP0iTS interrupt.
0 SetupTSE 0 R/W Enables the SetupTS interrupt.