AK4571 Datasheet, PDF (40/54 Pages) Asahi Kasei Microsystems – USB I/F Audio CODEC

ASAHI KASEI
[AK4571]
4.5.
Get Status
4.5.1. Get Status
Offset Field
Size Value
Description
0
bmRequestType 1
0x80
0x81
0x82
1
bRequest
1
0x00
DEVICE
INTERFACE
ENDPOINT
GET_STATUS
2
wValue
4
wIndex
6
wLeng th
2
0x0000
2
0x0000
0x0001
0x0002
0x0003
0x0000
0x0081
0x0002
0x0 083
0x0084
2
0x0002
ZERO
bmRequestType is “DEVICE"
bmRequestType is “INTERFACE “
bmRequestType is I”NTERFACE"
bmRequestType is “INTERFACE “
bmRequestType is “ENDPOINT"
bmRequestType is “ENDPOINT" *)
bmRequestType is “ENDPOINT" *
bmRequestType is “ENDPOINT" *)
*)
SET_INTERFACE( Alt "0" )
STALL
Alt "0"
SET_INTERFACE
Alt "0"
0x0000
(2 )
a) Device: 0x0000 (Bus Powered, No-remote wakeup)
b) Interface: 0x0000
c) Endpoint: 0x0000
4.6.
Set Address
AK4571 Value
ACK
Offset Field
Size Value
0
BmRequestType
1 0x00
Description
Zero
1
BRequest
2
wValue
4
wIndex
6
wLength
1 0x05
2 0xZZZZ
2 0x0000
2 0x0000
SET_ADDRESS
Device Address : ZZZZ is assigned by host
Zero
Zero
4.7.
Set Configuration
AK4571
0x00,0x01
Offset Field
Size
0
bmRequestType
1
1
bRequest
1
2
wValue
2
4
wIndex
2
6
wLength
2
ACK
Value
0x00
0x09
0x0000
0x0001
others
0x0000
0x0000
AK4571
”1”
Description
Zero
SET_CONFIGURATION
Unconfigured State
AK4571 is set to configured state
Unconfigured State
Zero
Zero
wValue
MS0153-J-02
- 40 -
2003/3