SH7727 Datasheet, PDF (778/1109 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7700 Series

Section 23 USB Function Controller
23.6.3 Control Transfer
Control transfer consists of three stages of setup, data (that may not be included), and status
(figure 23.4). The data stage consists of multiple bus transactions. The operating flowchart of
each stage is shown below.
Control-in
Setup stage
SETUP(0)
DATA0
IN(1)
DATA1
Data stage
IN(0)
...
DATA0
IN(0/1)
DATA0/1
Control-out
SETUP(0)
DATA0
OUT(1)
DATA1
OUT(0)
DATA0
. . . OUT(0/1)
DATA0/1
No data
SETUP(0)
DATA0
Figure 23.4 Transfer Stage for Control Transfer
Status stage
OUT(1)
DATA1
IN(1)
DATA1
IN(1)
DATA1
Rev. 5.00 Dec 12, 2005 page 706 of 1034
REJ09B0254-0500