FW82801DBM S L6DN Intel, FW82801DBM S L6DN Datasheet - Page 197
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FW82801DBM S L6DN
Manufacturer Part Number
FW82801DBM S L6DN
Description
Manufacturer
Intel
Datasheet
1.FW82801DBM_S_L6DN.pdf
(615 pages)
Specifications of FW82801DBM S L6DN
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Intel
®
Table 5-66. USB Schedule List Traversal Decision Table
82801DBM ICH4-M Datasheet
Context
Legends:
QH.LP = Queue Head Link Pointer (or Horizontal Link Pointer)
QE.LP = Queue Element Link Pointer (or Vertical Link Pointer)
TD.LP = TD Link Pointer
QH.Q = Q bit in QH
QH.T = T bit in QH
Q
0
0
0
1
1
1
1
1
1
1
1
1
QH.Q
—
—
—
0
0
1
1
x
x
x
x
x
QH.T
—
—
—
0
x
x
0
x
1
1
0
0
QH
QE
QE.Q
—
—
—
0
0
0
x
1
0
x
0
x
QELP
QHLP
QE.T
—
—
—
0
0
0
1
0
0
1
0
1
Vf
Q
Q T
TD.Vf
—
x
x
x
0
1
1
x
0
x
0
x
T
TD.Q
—
0
x
1
x
0
1
x
x
x
x
x
TDLP
TD.T
—
0
1
0
x
0
0
x
x
x
x
x
TD
Vf Q T
• Not in Queue - execute TD.
• Use TD.LP to get next TD
• Not in Queue - execute TD. End of
• Not in Queue - execute TD.
• Use TD.LP to get next (QH+QE).
• Set Q Context to 1.
• In Queue. Use QE.LP to get TD.
• Execute TD. Update QE.LP with TD.LP.
• Use QH.LP to get next TD.
• In Queue. Use QE.LP to get TD.
• Execute TD. Update QE.LP with TD.LP.
• Use TD.LP to get next TD.
• In Queue. Use QE.LP to get TD.
• Execute TD. Update QE.LP with TD.LP.
• Use TD.LP to get next (QH+QE).
• In Queue. Empty queue.
• Use QH.LP to get next TD
• In Queue. Use QE.LP to get (QH+QE)
• In Queue. Use QE.LP to get TD.
• Execute TD. Update QE.LP with TD.LP.
• End of Frame
• In Queue. Empty queue. End of Frame
• In Queue. Use QE.LP to get TD.
• Execute TD. Update QE.LP with TD.LP.
• Use QH.LP to get next (QH+QE).
• In Queue. Empty queue.
• Use QH.LP to get next (QH+QE)
Frame
QE.Q = Q bit in QE
QE.T = T bit in QE
TD.Q = Q bit in TD
TD. T = T bit in TD
TD. Vf = Vf bit in TD
Description
Functional Description
197
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