cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 276

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

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USB Register Descriptions
5.5.3.15
Index
Type
Reset Value
5.5.3.16
Index
Type
Reset Value
5.5.3.17
Index
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
15
31:0
15:9
Bit
7:0
Bit
Bit
7
14
Maximum Latency (USBC_PCI_MAX_LTNCY)
ASIC Test Mode Enable (USBC_PCI_ASIC_TEST)
ASIC Operational Mode Enable (USBC_PCI_ASIC_MODE)
Name
MAX_LTNCY
Name
RSVD
Reset
RSVD
13
3Fh
R/W
50h
40h
R/W
000F0000h
44h
R/W
0000h
6
RSVD
12
11
Description
Maximum Latency. This register specifies the desired settings for how often the USB
needs access to the PCI bus assuming a clock rate of 33 MHz. The value specifies a
period of time in units of 1/4 microsecond.
Description
Reserved. These bits are reserved for internal testing only. These bits should not be
written to.
Description
Reserved. Write 0s; reads undefined.
USBC_PCI_MAX_LTNCY Bit Descriptions
USBC_PCI_ASIC_MODE Bit Descriptions
USBC_PCI_ASIC_TEST Bit Descriptions
5
USBC_PCI_MAX_LTNCY Register Map
USBC_PCI_ASIC_MODE Register Map
USBC_PCI_ASIC_TEST Register Map
(Continued)
10
9
4
MAX_LTNCY
8
RSVD
276
7
3
6
5
2
RSVD
9
4
8
7
3
6
1
5
2
4
3
1
2
Revision 0.8
0
1
0
0