Rainbow Electronics W90N740 - Manual (Page 144)

W90N740
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Host Controller Command Status Register (HcCommandStatus)
Register Address R/W Description Reset Value
HcCommandStatus 0xFFF0.5008 R/W
Host Controller Command Status
Register
0x0000.0000
Register: HcCommandStatus
Bits Reset R/W Description
0 0b R/W
HostControllerReset
This bit is set to initiate the software reset. This bit is cleared by the
Host Controller, upon completed of the reset operation.
1 0b R/W
ControlListFilled
Set to indicate there is an active ED on the Control List. It may be set
by either software or the Host Controller and cleared by the Host
Controller each time it begins processing the head of the Control List.
2 0b R/W
BulkListFilled
Set to indicate there is an active ED on the Bulk List. The bit may be
set by either software or the Host Controller and cleared by the Host
Controller each time it begins processing the head of the Bulk List.
3 0b R/W
OwnershipChangeRequest
When set by software, this bit sets the OwnershipChange field in
HcInterruptStatus. The bit is cleared by software.
15-4 0h - Reserved. Read/Write 0's
17-16 00b
ScheduleOverrunCount
This field is increment every time the SchedulingOverrun bit in
HcInterruptStatus is set. The count wraps from ‘11’ to ‘00.’
31-18 0h - Reserved. Read/Write 0's