NEC mPD78F0730 Preliminary User's Manual page 375

Remarks 1. n = 0, 1
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CHAPTER 12 USB FUNCTION CONTROLLER (USBF)
Figure 12-19. CPUDEC Request for Control Transfer (11/12)
(d) Control transfer (without data stage) (1/2)
IN token of status phase
2. ♦: Processing by hardware
Preliminary User's Manual U19014EJ1V0UD
D
IN token received?
Yes
E0IN = 1 (UF0IS1)
STG = 1 (UF0IS1)
INTUSB0B active
Reading UF0ISn register
PROT = 1?
(UF0IS1)
No
STG = 1?
(UF0IS1)
Yes
EP0WC = 1
(UF0FIC0)
E0DED = 1
(UF0DEND)
N
No
Yes
Request processing aborted
G
No
Illegal processing
375