Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 21 USB FUNCTION CONTROLLER (USBF)
R01UH0042EJ0500 Rev.5.00 Page 1220 of 1513
Aug 12, 2011
Figure 21-31. Example of Processing After Power Application/Power Failure (2/3)
(a) Processing after power application (2/2)
Receiving GET_DESCRIPTOR
Device request
MPACK = 1
(UF0MODS)
Receiving SET_ADDRESS
request
Writing UF0ADRS register
Receiving SET_CONFIGURATION 1
request
Receiving SET_INTERFACE
request
Processing continues
SETCON = 1 (UF0SET)
SETRQ = 1 (UF0IS0)
CONF = 1 (UF0MODS)
UF0CNF register = 01H
Valid endpoint = DATA0
SETINT = 1 (UF0IS4)
Setting of UF0ASS register
Setting of UF0IFm register
Valid endpoint = DATA0
(a)
Remarks 1. m = 0 to 4
2. ♦: Processing by hardware