AK4571 Datasheet, PDF (47/54 Pages) Asahi Kasei Microsystems – USB I/F Audio CODEC

ASAHI KASEI
[AK4571]
5.4.
Get Selector Unit Control Request
5.4.1. Selector Control
Offset
0
1
2
4
6
Field
bmRequestType
bRequest
wValue
wIndex
wLength
Size
1
1
2
2
2
Value
0xa1
0x81
0x0 000
0x0 700
0x0001
Offset Field
0
bSelector
Size Value
1
0xZZ
Description
GET_CUR
ZERO
SELECTOR UNIT CONTROL
The Length of Selector Control Parameter Block
Description
”0x01”
5.5.
Get Mixer Unit Control Request
5.5.1. Mixer Control
Offset
0
1
2
4
6
Field
Size
bmRequestType 1
bRequest
1
wValue
2
wIndex
2
wLength
2
Value
0xa1
0x81
0x82
0x83
0x84
0x0 000
0x0 900
0x000C
Description
GET_CUR
GET_MIN
GET_MAX
GET_RES
ZERO
SELECTOR UNIT
The Length of Mixer Control Parameter Block
Offset Field
0
bMixer
GET_RES
(12
Size Value
12
0xZZ
)”0x0100”
Description
GET_CUR, GET_MIN, GET_MAX
6
12
Offset
0
2
4
6
8
10
Value
0x0000
0x0000
0x0000
0x8000
0x8000
0x0000
Description
mic 1ch
----
LineOut Lch:
0dB
mic 1ch
----
Lineout Rch:
0dB
DAC Lch
----
Lineout Lch:
0dB
DAC Lch
----
Lineout Rch:
-127dB
DAC Rch
----
Lineout Lch:
-127dB
DAC Rch
----
Lineout Rch:
0dB
MS0153-J-02
- 47 -
2003/3