SH7727 Datasheet, PDF (783/1109 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7700 Series

(4) Status Stage (Control-In)
USB function
OUT token reception
Section 23 USB Function Controller
Application
0-byte reception from host
ACK
Set EP0o reception
complete flag
(IFR0.EP0o TS = 1)
Interrupt request
Clear EP0o reception
complete flag
(IFR0.EP0o TS = 0)
End of control transfer
Write 1 to EP0o read
complete bit
(TRG.EP0o RDFN = 1)
End of control transfer
Figure 23.8 Status Stage Operation (Control-In)
The status stage in control-in starts with out-token from the host. The application receives 0-byte
data from the host and completes control transfer.
Rev. 5.00 Dec 12, 2005 page 711 of 1034
REJ09B0254-0500