Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 21 USB FUNCTION CONTROLLER (USBF)
R01UH0042EJ0500 Rev.5.00 Page 1050 of 1513
Aug 12, 2011
21.5 Requests
The USB standard has a request command that reports requests from the host device to the function device to execute
response processing.
The requests are received in the SETUP stage of control transfer, and most can be automatically processed via the
hardware of the USB function controller (USBF).
21.5.1 Automatic requests
(1) Decode
The following tables show the request format and the correspondence between requests and decoded values.
Table 21-2. Request Format
Offset Field Name
0 bmRequestType
1 bRequest
2 Lower side
3
wValue
Higher side
4 Lower side
5
wIndex
Higher side
6 Lower side
7
wLength
Higher side