FW82801DB S L66K Intel, FW82801DB S L66K Datasheet - Page 435

• Manufacturer Part Number: FW82801DB S L66K
• Manufacturer: Intel

Specifications of FW82801DB S L66K

• Lead Free Status / RoHS Status: Supplier Unconfirmed

12.2.2
Intel
®
Table 12-3. Enhanced Host Controller Operational Registers
82801DB ICH4 Datasheet
Note: Software must read and write these registers using only DWord accesses.These registers are
Host Controller Operational Registers
This section defines the enhanced host controller operational registers. These registers are located
after the capabilities registers. The operational register base must be DWord-aligned and is
calculated by adding the value in the first capabilities register (CAPLENGTH) to the base address
of the enhanced host controller register address space. All registers are 32 bits in length.
divided into two sets. The first set at offset 00:3Fh are implemented in the core power well. Unless
otherwise noted, the core-well registers are reset by the assertion of any of the following:
The second set at offset 40h to the end of the implemented register space are implemented in the
Suspend power well. Unless otherwise noted, the suspend-well registers are reset by the assertion
of either of the following:
(CAPLEN
74–3FFh
•
•
•
•
•
0C–0Fh
1C–3Fh
4C–4Fh
5C–5Fh
08–0Bh
18–1Bh
48–4Bh
58–5Bh
00–03h
04–07h
10–13h
14–17h
40–43h
44–47h
50–53h
54–57h
60–73h
Offset
GTH+)
core well hardware reset
HCRESET
D3-to-D0 reset
suspend well hardware reset
HCRESET
PERIODICLISTBASE
CTRLDSSEGMENT
ASYNCLISTADDR
CONFIGFLAG
EHCI_CMD
EHCI_INTR
Mnemonic
EHCI_STS
PORTSC0
PORTSC1
PORTSC2
PORTSC3
PORTSC4
PORTSC5
FRINDEX
USB EHCI Command
USB EHCI Status
USB EHCI Interrupt Enable
USB EHCI Frame Index
Control Data Structure
Segment
Period Frame List Base
Address
Next Asynchronous List
Address
Reserved
Configure Flag Register
Port 0 Status and Control
Port 1 Status and Control
Port 2 Status and Control
Port 3 Status and Control
Port 4 Status and Control
Port 5 Status and Control
Reserved
Debug Port Registers
Reserved
Register Name
EHCI Controller Registers (D29:F7)
00080000h
00001000h
00000000h
00000000h
00000000h
00000000h
00000000h
00000000h
00003000h
00003000h
00003000h
00003000h
00003000h
00003000h
Undefined
Undefined
Undefined
Default
0h
Suspend
Suspend
Suspend
Suspend
Suspend
Suspend
Suspend
Special
Notes
R/WC, RO
R/W, RO
R/W, RO
R/W, RO
R/W, RO
R/W, RO
R/W, RO
R/W, RO
R/WC,
R/WC,
R/WC,
R/WC,
R/WC,
R/WC,
Type
R/W
R/W
R/W
R/W
R/W
R/W
RO
RO
RO
RO
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