AK5371A Datasheet, PDF (24/32 Pages) Asahi Kasei Microsystems – 2ch A/D Converter with USB I/F

ASAHI KASEI
[AK5371A]
4.5 Get Status
Offset
0
1
2
4
6
Field
Size
bmRequestType 1
bRequest
1
wValue
2
wIndex
2
wLength
2
Value
0x80
0x81
0x82
0x00
0x0000
0x0000
0x0000
0x0001
0x0000
0x0081
0x0002
Description
DEVICE
INTERFACE
ENDPOINT
GET_STATUS
ZERO
bmRequestType is DEVICE
bmRequestType is Audio Control Interface
bmRequestType is Audio Streaming Interface
bmRequestType is Audio Control Endpoint
bmRequestType is Audio Streaming Endpoint
The AKM USB MIC returns the following status.
a)Device : 0x0000( AKM USB MIC is bus-powered device)
b)Interface: 0x0000 (All Zero)
c)Endpoint : 0x0000
4.6 Set Address
AKM USB MIC stores the wValue in the internal memory as Device Address. In addition to this, the device
returns ACK.
Offset Field
Size Value
Description
0
bmRequestType 1 0x00
Zero
1
bRequest
1 0x05
SET_ADDRESS
2
wValue
2 0xZZZZ
Device Address : ZZZZ is assigned by host
4
wIndex
2 0x0000
Zero
6
wLength
2 0x0000
Zero
4.7 Set Configuration
AKM USB MIC is placed to configured state only wValue of this request is 0x0001. In addition to this, the device
returns ACK.
Offset
0
1
2
4
6
Field
Size
bmRequestType 1
bRequest
1
wValue
2
wIndex
2
wLength
2
Value
0x00
0x09
0x0000
0x0001
others
0x0000
0x0000
Description
Zero
SET_CONFIGURATION
Unconfigured State
AKM USB MIC is set to configured state
Invalid
Zero
Zero
MS0546-E-00
MS0103-E-00
24
2007/02