NH82801DB S L8DE Intel, NH82801DB S L8DE Datasheet - Page 421

• Manufacturer Part Number: NH82801DB S L8DE
• Manufacturer: Intel

Specifications of NH82801DB S L8DE

• Lead Free Status / RoHS Status: Compliant

12.1.6
12.1.7
12.1.8
12.1.9
Intel
®
82801DB ICH4 Datasheet
PI—Programming Interface Register (USB EHCI—D29:F7)
Address Offset:
Default Value:
SCC—Sub Class Code Register (USB EHCI—D29:F7)
Address Offset:
Default Value:
BCC—Base Class Code Register (USB EHCI—D29:F7)
Address Offset:
Default Value:
MLT— PCI Master Latency Timer Register
(USB EHCI—D29:F7)
Address Offset:
Default Value:
Bit
7:0
Bit
7:0
Bit
7:0
Bit
7:0
Programming Interface — RO. A value of 20h indicates that this USB High-speed Host controller
conforms to the EHCI Specification.
Sub Class Code — RO. A value of 03h indicates that this is a Universal Serial Bus Host controller.
Base Class Code — RO. A value of 0Ch indicates that this is a Serial Bus controller.
Master Latency Timer Count (MLTC) — RO. Hardwired to 00h. Because the USB EHCI controller is
internally implemented with arbitration via hub interface (and not PCI), it does not need a master
latency timer.
09h
20h
0Ah
03h
0Bh
0Ch
0Dh
00h
Description
Description
Description
Description
Attribute:
Size:
Attribute:
Size:
Attribute:
Size:
Attribute:
Size:
EHCI Controller Registers (D29:F7)
RO
8 bits
RO
8 bits
RO
8 bits
RO
8 bits
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