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Bit
Bit Name
Initial Value R/W
3
SPRSs
0
2
SPRSi
0
1
VBUSs
0
0
VBUSi
0
Note: * The write value should always be 0 to clear this flag.
Description
R
Suspend/Resume Status
Indicates the suspend/resume status and cannot
request an interrupt.
0: Indicates that the bus is in the normal state.
1: Indicates that the bus is in the suspend state.
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 software standby state at
resume.
R
VBUS Status
Indicates the VBUS state by the USB cable
connection and disconnection. An interrupt cannot be
requested by the VBUSs.
0: Indicates that the VBUS (USB cable) bus is
disconnected.
1: Indicates that the VBUS (USB cable) bus is
connected.
R/(W)* VBUS Interrupt
Set to 1 if a VBUS state changes by USB cable
connection or disconnection. The corresponding
interrupt output is EXIRQ0 or EXIRQ1.
Rev. 3.0, 10/02, page 469 of 686
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