NH82801GHM S L8YR Intel, NH82801GHM S L8YR Datasheet - Page 232

• Manufacturer Part Number: NH82801GHM S L8YR
• Manufacturer: Intel

Specifications of NH82801GHM S L8YR

• Lead Free Status / RoHS Status: Compliant

5.22
Note:
.
Table 5-59. Features Supported by Intel
232
AC ’97 Controller (Audio D30:F2, Modem D30:F3)
(Desktop and Mobile Only)
All references to AC ’97 in this document refer to the AC ’97 Specification, Version 2.3.
For further information on the operation of the AC-link protocol, see the AC ’97
Specification, Version 2.3.
The ICH7 AC ’97 controller features include:
Table 5-59
controller
System
Interface
Power
Management
PCI Audio
Function
PCI Modem
function
• Independent PCI functions for audio and modem.
• Independent bus master logic for dual Microphone input, dual PCM Audio input (2-
• 20-bit sample resolution
• Multiple sample rates up to 48 kHz
• Support for 16 codec-implemented GPIOs
• Single modem line
• Configure up to three codecs with three ACZ_SDIN pins
channel stereo per input), PCM audio output (2-, 4- or 6-channel audio), Modem
input, Modem output and S/PDIF output.
Feature
shows a detailed list of features supported by the ICH7 AC ’97 digital
• Isochronous low latency bus master memory interface
• Scatter/gather support for word-aligned buffers in memory
• Data buffer size in system memory from 3 to 65535 samples per input
• Data buffer size in system memory from 0 to 65535 samples per output
• Independent PCI audio and modem functions with configuration and I/O spaces
• AC ’97 codec registers are shadowed in system memory via driver
• AC ’97 codec register accesses are serialized via semaphore bit in PCI I/O space (new
• Power management via PCI Power Management
• Read/write access to audio codec registers 00h–3Ah and vendor registers 5Ah–7Eh
• 20-bit stereo PCM output, up to 48 kHz (L,R, Center, Sub-woofer, L-rear and R-rear
• 16-bit stereo PCM input, up to 48 kHz (L,R channels on slots 3,4)
• 16-bit mono mic in w/ or w/o mono mix, up to 48 kHz (L,R channel, slots 3,4) (mono
• 16-bit mono PCM input, up to 48 kHz from dedicated mic ADC (slot 6)
• During cold reset ACZ_RST# is held low until after POST and software deassertion of
• Read/write access to modem codec registers 3Ch–58h and vendor registers
• 16-bit mono modem line 1 output and input, up to 48 kHz (slot 5)
• Low latency GPIO[15:0] via hardwired update between slot 12 and PCI I/O register
• Programmable PCI interrupt on modem GPIO input changes via slot 12 GPIO_INT
• SCI event generation on ACZ_SDIN[2:0] wake-up signal
(all mono or stereo 20-bit and 16-bit data types are supported, no 8-bit data types
are supported)
accesses are not allowed while a prior access is still in progress)
channels on slots 3,4,6,7,8,9,10,11)
mix supports mono hardware AEC reference for speakerphone)
(supports speech recognition or stereo hardware AEC ref for speakerphone)
ACZ_RST# (supports passive PC_BEEP to speaker connection during POST)
5Ah–7Eh
®
ICH7 (Sheet 1 of 2)
Description
Intel
®
ICH7 Family Datasheet
Functional Description