FW82801ER S L742 Intel, FW82801ER S L742 Datasheet - Page 555
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FW82801ER S L742
Manufacturer Part Number
FW82801ER S L742
Description
Manufacturer
Intel
Datasheet
1.FW82801ER_S_L742.pdf
(671 pages)
Specifications of FW82801ER S L742
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Intel
®
82801EB ICH5 / 82801ER ICH5R Datasheet
NOTE: Reads across DWord boundaries are not supported.
Bit
2
1
0
AC ’97 Warm Reset — R/W (special).
0 = Normal operation.
1 = Writing a 1 to this bit causes a warm reset to occur on the AC-link. The warm reset will awaken
AC ’97 Cold Reset# — R/W.
0 = Writing a 0 to this bit causes a cold reset to occur throughout the AC ‘97 circuitry. All data in the
1 = This bit defaults to 0 and hence after reset, the driver needs to set this bit to a 1. The value of
Note: This bit is in the Core well.
GPI Interrupt Enable (GIE) — R/W. This bit controls whether the change in status of any GPI
causes an interrupt.
0 = Bit 0 of the Global Status Register is set, but no interrupt is generated.
1 = The change on value of a GPI causes an interrupt and sets bit 0 of the Global Status Register.
a suspended codec without clearing its internal registers. If software attempts to perform a
warm reset while AC_BIT_CLK is running, the write will be ignored and the bit will not change.
This bit is self-clearing (it remains set until the reset completes and AC_BIT_CLK is seen on the
AC-link, after which it clears itself).
controller and the codec will be lost. Software needs to clear this bit no sooner than the
minimum number of ms have elapsed.
this bit is retained after suspends; hence, if this bit is set to a 1 prior to suspending, a cold reset
is not generated automatically upon resuming.
AC ’97 Audio Controller Registers (D31:F5)
Description
555
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