NEC mPD78F0730 Preliminary User's Manual page 275

Request
GET_INTERFACE
GET_CONFIGURATION
GET_DESCRIPTOR
Device
GET_DESCRIPTOR
Configuration
GET_STATUS
Device
GET_STATUS
Endpoint 0
GET_STATUS
Endpoint X
CLEAR_FEATURE
Note 2
Device
CLEAR_FEATURE
Endpoint 0
CLEAR_FEATURE
Endpoint X
SET_FEATURE
Note 3
Device
SET_FEATURE
Endpoint 0
SET_FEATURE
Endpoint X
SET_INTERFACE
SET_CONFIGURATION
SET_ADDRESS
Remark
Notes 1. If the wLength value is less than the prepared value, the wLength value is returned; if the wLength value
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CHAPTER 12 USB FUNCTION CONTROLLER (USBF)
Table 12-3. Correspondence Between Requests and Decoded Values
Offset
bmRequestType bRequest
0
81H 0AH
80H 08H
80H 06H
80H 06H
80H 00H
82H 00H
82H 00H
00H 01H
02H 01H
Note 2
02H 01H
Note 2
00H 03H
02H 03H
Note 3
02H 03H
Note 3
01H 0BH
Note 4
00H 09H
00H 05H
√: Data stage is provided
×: Data stage is not provided
is greater than the prepared value, the prepared value is returned.
2. The CLEAR_FEATURE request clears UF0 device status register L (UF0DSTL) and UF0 EPn status
register L (UF0EnSL) (n = 0 to 2) when ACK is received in the status stage.
Decoded Value
wValue wIndex
1 3 2 5
00H 00H 00H
00H 00H 00H
01H 00H 00H
02H 00H 00H
00H 00H 00H
00H 00H 00H
00H 00H 00H
00H 01H 00H
00H 00H 00H
00H 00H 00H
00H 01H 00H
00H 00H 00H
00H 00H 00H
00H 0#H 00H
00H 00H 00H
01H
XXH XXH 00H
Preliminary User's Manual U19014EJ1V0UD
Response
wLength Df
4 7 6
0nH 00H 01H STALL STALL
00H 00H 01H ACK
NAK
Note 1
00H XXH XXH ACK
NAK
Note 1
00H XXH XXH ACK
NAK
00H 00H 02H ACK
NAK
00H 00H 02H ACK
80H NAK
$$H 00H 02H STALL STALL
00H 00H 00H ACK
NAK
00H 00H 00H ACK
80H NAK
$$H 00H 00H STALL STALL
00H 00H 00H ACK
NAK
00H 00H 00H ACK
80H NAK
$$H 00H 00H STALL STALL
0?H 00H 00H STALL STALL
00H 00H 00H ACK
NAK
00H 00H 00H ACK
NAK
Data
Stage
Ad Cf
√
ACK
NAK
√
ACK ACK
NAK NAK
√
ACK ACK
NAK NAK
√
ACK ACK
NAK NAK
√
ACK ACK
NAK NAK
√
ACK ACK
NAK NAK
√
ACK
NAK
×
ACK ACK
NAK NAK
×
ACK ACK
NAK NAK
×
ACK
NAK
×
ACK ACK
NAK NAK
×
ACK ACK
NAK NAK
×
ACK
NAK
×
ACK
NAK
×
ACK ACK
NAK NAK
×
ACK ACK
NAK NAK
275