Renesas SH7641 Manual De Usuario

Section 20   USB Function Module 

Rev. 4.00  Sep. 14, 2005  Page 772 of 982 

REJ09B0023-0400 

 

Status Stage (Control-IN): The control-IN status stage starts with an OUT token from the host. 
The application receives 0-byte data from the host, and ends control transfer. 

USB function

Application

OUT token reception

0-byte reception from host

End of control transfer

Set EP0o reception

complete flag

(USBIFR0/EP0o TS = 1)

Clear EP0o reception

complete flag

(USBIFR0/EP0o TS = 0)

Write 1 to EP0o read

complete bit

(USBTRG/EP0o RDFN = 1)

End of control transfer

ACK

Interrupt request