NH82801DBSL8DE 869490 Intel, NH82801DBSL8DE 869490 Datasheet - Page 228

• Manufacturer Part Number: NH82801DBSL8DE 869490
• Manufacturer: Intel

Specifications of NH82801DBSL8DE 869490

• Lead Free Status / RoHS Status: Compliant

Functional Description
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228
Table 5-99. Features Supported by Intel
System Interface
Power
Management
PCI Audio
Function
PCI Modem
function
AC-link
Multiple Codec
Feature
NOTES:
1. Audio Codec IDs are remappable and not limited to 00,01,10.
2. Modem Codec IDs are remappable and limited to 00,01.
3. When using multiple codecs, the Modem Codec must be ID 01.
• 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 IO spaces.
• AC ’97 codec registers are shadowed in system memory via driver.
• AC ’97 codec register accesses are serialized via semaphore bit in PCI IO space
• 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, AC_RST# is held low until after POST and software deassertion of
• Read/write access to modem codec registers 3Ch–58h and vendor registers 5Ah–
• 16-bit mono modem line1 output and input, up to 48 kHz (slot 5).
• Low latency GPIO[15:0] via hardwired update between slot 12 and PCI IO register.
• Programmable PCI interrupt on modem GPIO input changes via slot 12 GPIO_INT.
• SCI event generation on AC_SDIN[2:0] wake-up signals.
• Supports AC ’97 2.3 AC-link interface.
• Variable sample rate output support via AC ’97 SLOTREQ protocol
• Variable sample rate input support via monitoring of slot valid tag bits (slots 3,4,5,6)
• 3.3 V digital operation meets AC ’97 2.3 DC switching levels.
• AC-link IO driver capability meets AC ’97 2.3 triple codec specifications.
• Codec register status reads must be returned with data in the next AC-link frame, per
• Triple codec addressing: All AC ’97 Audio codec register accesses are addressable to
• Modem codec addressing: All AC ’97 Modem codec register accesses are
• Triple codec receive capability via AC_SDIN[2:0] pins
• AC_SDIN mapping to DMA engine mapping capability allows for simultaneous input
(all mono or stereo 20-bit and 16-bit data types are supported, no 8-bit data types are
supported).
(new 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).
AC_RST# (supports passive PC_BEEP to speaker connection during POST).
7Eh.
(slots 3,4,5,6,7,8,9,10,11).
the AC ’97 2.3 specification.
codec ID 00 (primary), codec ID 01 (secondary), or codec ID 10 (tertiary).
addressable to codec ID 00 (primary) or codec ID 01 (secondary).
(AC_SDIN[2:0] frames are internally validated, synch’d, and OR’d depending on the
Steer Enable bit status in the SDM register).
from three different audio codecs.
®
ICH4
Description
Intel
®
82801DB ICH4 Datasheet