Digi NS9750 - Manual (Page 752)

U S B h o s t b l o c k r e g i s t e r s
7 2 8 N S 9 7 5 0 H a r d w a r e R e f e r e n c e
D10 R/W RWE 0b RemoteWakeupEnable
Enables or disables the remote wakeup feature when
upstream resume signaling is found. When this bit is set
and the ResumeDetected bit in the HcInterruptStatus
register is set, a remote wakeup is signaled to the host
system.
Setting this bit has no impact on the generation of
hardware interrupts.
D09 R/W RWC 0b RemoteWakeupConnected
Indicates whether the host controller supports remote
wakeup signaling. If remote wakeup is supported and used
by the system, it is the system firmware’s responsibility to
set this bit during POST.
The host controller clears the bit on a hardware reset, but
does not alter the bit on a software reset.
D08 R/W IR 0b InterruptRouting
Determines the routing of interrupts generated by events
registered in the HcInterruptStatus register.
If clear, all interrupts are routed to the normal host
bus interrupt mechanism.
If set, interrupts are routed to the system
management interrupt.
The host controller driver clears this bit on a hardware
reset, but does not alter the bit on a software reset. The
host controller driver uses this bit as a tag to indicate the
ownership of the host controller.
Bits Access Mnemonic Reset Description
Table 424: HcControl register