FW82801EB Intel, FW82801EB Datasheet - Page 554

• Manufacturer Part Number: FW82801EB
• Manufacturer: Intel

Specifications of FW82801EB

• Lead Free Status / RoHS Status: Not Compliant

AC ’97 Audio Controller Registers (D31:F5)
15.2.8
554
GLOB_CNT—Global Control Register
(Audio—D31:F5)
I/O Address:
Default Value:
Lockable:
31:30
29:24
23:22
21:20
19:7
Bit
6
5
4
3
Reserved.
S/PDIF Slot Map (SSM) — R/W. If the run/pause bus master bit (bit 0 of offset 2Bh) is set, then the
value in these bits indicate which slots S/PDIF data is transmitted on. Software must ensure that the
programming here does not conflict with the PCM channels being used. If there is a conflict,
unpredictable behavior will result — the hardware will not check for a conflict.
00 = Reserved
01 = Slots 7 and 8
10 = Slots 6 and 9
11 = Slots 10 and 11
PCM Out Mode (POM) — R/W. Enables the PCM out channel to use 16 or 20-bit audio on PCM out.
This does not affect the microphone of S/PDIF DMA. When greater than 16 bit audio is used, the
data structures are aligned as 32-bits per sample, with the highest order bits representing the data,
and the lower order bits as don’t care.
00 = 16 bit audio (default)
01 = 20 bit audio
10 = Reserved. If set, indeterminate behavior will result.
11 = Reserved. If set, indeterminate behavior will result.
PCM 4/6 Enable — R/W. This field configures PCM Output for 2, 4 or 6 channel mode.
00 = 2-channel mode (default)
01 = 4-channel mode
10 = 6-channel mode
11 = Reserved
Reserved.
AC_SDIN2 Interrupt Enable — R/W.
0 = Disable
1 = Enable an interrupt to occur when the codec on the AC_SDIN2 causes a resume event on the
AC_SDIN1 Interrupt Enable — R/W.
0 = Disable
1 = Enable an interrupt to occur when the codec on the AC_SDIN1 causes a resume event on the
AC_SDIN0 Interrupt Enable — R/W.
0 = Disable
1 = Enable an interrupt to occur when the codec on AC_SDIN0 causes a resume event on the AC-
ACLINK Shut Off (LSO) — R/W.
0 = Normal operation.
1 = Controller disables all outputs which will be pulled low by internal pull down resistors.
AC-link.
AC-link.
link.
NABMBAR + 2Ch
00000000h
No
Intel
Description
Attribute:
Size:
Power Well:
®
82801EB ICH5 / 82801ER ICH5R Datasheet
R/W, R/W (special)
32 bits
Core