cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 279
cs5535
Manufacturer Part Number
cs5535
Description
Geode Cs5535 Companion Multi-function South Bridge
Manufacturer
National Semiconductor Corporation
Datasheet
1.CS5535.pdf
(555 pages)
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Revision 0.8
USB Register Descriptions
5.5.4.3
USB Memory Offset
Type
Reset Value
5.5.4.4
USB Memory Offset
Type
Reset Value
All bits are set by the hardware and cleared by software.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31:18
17:16
15:4
Bit
3
2
1
0
Host Controller Command Status (USBC_HcCommandStatus)
Host Controller Interrupt Status (USBC_HcInterruptStatus)
Name
RSVD
Schedule
OverrunCount
RSVD
Ownership
ChangeRequest
BulkListFilled
ControlListFilled
HostControllerRe-
set
HCD:
HC:
HCD:
HC:
08h
R/W
R/W
00000000h
0Ch
R/W
R/W
00000000h
RSVD
USBC_HcCommandStatus Bit Descriptions
HCD
R/W
R/W
R/W
R/W
R/W
R/W
RO
USBC_HcCommandStatus Register Map
(Continued)
R/W
R/W
R/W
R/W
R/W
R/W
R/W
HC
Description
Reserved. Read/write 0s.
Schedule Overrun Count. This field increments every time the
SchedulingOverrun bit in HcInterruptStatus is set. The count
wraps from 11 to 00.
Reserved. Read/write 0s.
Ownership Change Request. When set by software, this bit
sets the OwnershipChange field in HcInterruptStatus. The bit is
cleared by software. This field always reads back as 0.
Bulk List Filled. Set to indicate there is an active ED on the Bulk
List. The bit may be set by either software or the HC and cleared
by the HC each time it begins processing the head of the Bulk
List.
Control List Filled. Set to indicate there is an active ED on the
Control List. It may be set by either software or the HC and
cleared by the HC each time it begins processing the head of the
Control List.
Host Controller Reset. This bit is set to initiate a software reset.
This bit is cleared by the HC upon completion of the reset opera-
tion. This field always reads back as 0.
279
RSVD
9
8
7
6
5
4
3
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2
1
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