cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 275

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

Revision 0.8
USB Register Descriptions
5.5.3.12
Index
Type
Reset Value
5.5.3.13
Index
Type
Reset Value
5.5.3.14
Index
Type
Reset Value
Bit
7:0
Bit
7:0
Bit
7:0
7
7
7
Interrupt Line (USBC_PCI_INT_LINE)
Interrupt Pin (USBC_PCI_INT_PIN)
Minimum Grant (USBC_PCI_MIN_GNT)
Name
INT_LINE
Name
INT_PIN
Name
MIN_GNT
3Ch
R/W
00h
3Dh
R/W
01h
3Eh
R/W
00h
6
6
6
Description
Interrupt Line. This register identifies which of the system interrupt controllers the
devices interrupt pin is connected to. The value of this register is used by device drivers
and has no direct meaning to the USB.
Description
Interrupt Pin. This register identifies which interrupt pin a device uses. Since the USB
uses INTA#, this value is set to 01h.
Description
Minimum Grant. This register specifies the desired settings for how long a burst the
USB needs assuming a clock rate of 33 MHz. The value specifies a period of time in
units of 1/4 microsecond.
5
5
5
USBC_PCI_INT_LINE Bit Descriptions
USBC_PCI_MIN_GNT Bit Descriptions
(Continued)
USBC_PCI_INT_PIN Bit Descriptions
USBC_PCI_MIN_GNT Register Map
USBC_PCI_INT_LINE Register Map
USBC_PCI_INT_PIN Register Map
4
4
4
MIN_GNT
INT_LINE
INT_PIN
275
3
3
3
2
2
2
1
1
1
www.national.com
0
0
0