cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 286

• Manufacturer Part Number: cs5535
• Description: Geode Cs5535 Companion Multi-function South Bridge
• Manufacturer: National Semiconductor Corporation

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USB Register Descriptions
5.5.4.15
USB Memory Offset
Type
Reset Value
5.5.4.16
USB Memory Offset
Type
Reset Value
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
30:14
30:16
13:0
15:0
Bit
Bit
31
Host Controller Frame Remaining (USBC_HcFrameRemaining)
Host Controller Frame Number (USBC_HcFmNumber)
Name
FrameRemaining
Toggle
RSVD
FrameRemaining
Name
RSVD
FrameNumber
HCD:
HC:
HCD:
HC:
38h
RO
R/W
00000000h
3Ch
RO
R/W
00000000h
RSVD
RSVD
USBC_HcFrameRemaining Bit Descriptions
HCD
HCD
RO
RO
RO
RO
RO
USBC_HcFrameRemaining Register Map
USBC_HcFmNumber Bit Descriptions
(Continued)
USBC_HcFmNumber Register Map
R/W
R/W
R/W
R/W
R/W
HC
HC
Description
Frame Remaining Toggle. Loaded with FrameIntervalToggle
when FrameRemaining is loaded.
Reserved. Read/write 0s.
Frame Remaining. When the HC is in the UsbOperational state,
this 14-bit field decrements each 12 MHz clock period. When the
count reaches 0, (end of frame) the counter reloads with
FrameInterval. In addition, the counter loads when the HC transi-
tions into UsbOperational.
Description
Reserved. Read/write 0s.
Frame Number. This 16-bit incrementing counter field is incre-
mented coincident with the loading of FrameRemaining. The
count rolls over from FFFFh to 0h.
286
FrameNumber
9
9
FrameRemaining
8
8
7
7
6
6
5
5
4
4
3
3
2
2
Revision 0.8
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