cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 277

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

Revision 0.8
USB Register Descriptions
5.5.4
5.5.4.1
USB Memory Offset
Type
Reset Value
5.5.4.2
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
31:8
Bit
7:1
Bit
7:0
8
0
Host Controller Native Registers
Host Controller Revision (USBC_HcRevision)
Host Controller Control (USBC_HcControl)
Reset
SIE_PIPE_DIS
RSVD
BUFF_SIZE
Name
RSVD
REV
HCD:
HC:
HCD:
HC:
00h
RO
RO
00000110h
04h
R/W
R/W
00000000h
Description
SIE Pipeline Disable. When set, waits for all USB bus activity to complete prior to
returning completion status to the List Processor. Should normally be cleared to 0. This
is a fail-safe mechanism to avoid potential problems with the clk_dr transition between
1.5 MHz and 12 MHz.
Reserved. Write 0s; reads undefined.
Data Buffer Size. When set, the size of the region for the data buffer is 16 bytes. When
clear, the size is 32 bytes.
HCD
RO
RO
USBC_PCI_ASIC_MODE Bit Descriptions
RSVD
(Continued)
USBC_HcRevision Bit Descriptions
USBC_HcRevision Register Map
USBC_HcControl Register Map
RSVD
HC
RO
RO
Description
Reserved. Read/write 0s.
Revision (Read Only). Indicates the Open HCI Specification
revision number implemented by the Hardware. USB supports
1.0a specification. (X.Y = XYh).
277
9
9
8
8
7
7
6
6
5
5
4
4
REV
3
3
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2
2
1
1
0
0