CHAPTER 12 USB FUNCTION CONTROLLER (USBF)
Preliminary User’s Manual U19014EJ1V0UD
371
Figure 12-19. CPUDEC Request for Control Transfer (7/12)
(c) Control transfer (write) (1/4)
Clearing UF0E0R register
C
K
G
INTUSB0B
active
Yes
Normal reception?
No
EP0RC = 1
(UF0FIC0)
No
PROT = 1?
(UF0IS1)
Yes
Yes
OUT token received?
No
Writing UF0E0R register
E0ODT = 1 (UF0IS1)
EP0R = 1 (UF0EPS0)
EP0NKR = 1 (UF0E0N)
Reading UF0ISn register
Remarks 1.
n = 0, 1
2.
♦
: Processing by hardware
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