STAC9250 Datasheet, PDF (43/137 Pages) Integrated Device Technology – TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES

STAC9250/9251
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
PC AUDIO
5.7. ADC0Cnvtr Node (NID = 0x03)
5.7.1. ADC0Cnvtr Frmt
Get
Set1
Table 56. ADC0Cnvtr Frmt Command Verb Format
Verb ID
Payload
A
0000
2
See bits [15:0] of bitfield table
Response
See bitfield table
0000_0000h
Bit
[31:16]
[15]
[14]
[13:11]
[10:8]
[7]
Table 57. ADC0Cnvtr Frmt Command Response Format
Bitfield Name
RW
Reset
Description
Rsvd2
R
0x0
Reserved
StrmType
Stream Type
RW
0x0
0 = PCM
1 = Non-PCM (remaining bits in this verb
have other meanings)
RateBase
Sample Base Rate
RW
0x0
0 = 48 KHz
1 = 44.1 KHz
RateMult
Sample Base Rate Multiple
000 = 48 KHz / 44.1 KHz or less
RW
0x0
001 = x2
010 = Reserved (x3)
011 = x4
100-111 = Reserved
RateDiv
Sample Base Rate Divisor
000 = Divide by 1
001 = Divide by 2
010 = Divide by 3
RW
0x0
011 = Divide by 4
100 = Divide by 5
101 = Divide by 6
110 = Divide by 7
111 = Divide by 8
Rsvd1
R
0x0
Reserved
IDT™
43
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
STAC9250/9251
V 1.1 102706