SH7280 Datasheet, PDF (1385/1726 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine family

Section 25 USB Function Module
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
OUT token reception
Application
0-byte reception from host
ACK
Set EP0o reception
complete flag
(USBIFR0/EP0o TS = 1)
Interrupt request
Clear EP0o reception
complete flag
(USBIFR0/EP0o TS = 0)
End of control transfer
Write 1 to EP0o read
complete bit
(USBTRG/EP0o RDFN = 1)
End of control transfer
Figure 25.8 Status Stage (Control-IN) Operation
Rev. 1.00 Jun. 26, 2008 Page 1355 of 1692
REJ09B0393-0100