Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 21 USB FUNCTION CONTROLLER (USBF)
R01UH0042EJ0500 Rev.5.00 Page 1202 of 1513
Aug 12, 2011
Figure 21-24. CPUDEC Request for Control Transfer (8/12)
(c) Control transfer (write) (2/4)
C
Data length other than 0?
No
Yes
L
E0ODT = 0 (UF0IS1)
EP0R = 0 (UF0EPS0)
EP0NKR = 0 (UF0E0N)
Yes
Data length other than 0?
No
Yes
E0ODT = 1?
(UF0IS1)
No
Reading UF0E0R register
Data length = Data length − 1
No
Data length other than 0?
Yes
Updating data length
of UF0E0L register
Updating data length
of UF0E0L register
UF0E0L register data is
read up to the value read
by the UF0E0R register.
K
Illegal processing
Remark ♦: Processing by hardware