r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1637

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

Figure 36.14 EP4 Isochronous-Out Transfer Operation (SOF is Broken)
Data reception from host
Out-token reception
from host is broken
Out-token reception
(IFR3/EP4 TS = 1)
Data transmitted
reception flag to 1
SOF reception
SOF is broken
Set EP4 normal
FIFO buffer
switch over
receive data?
No error in
USB function
Yes
No
Set EP4 abnormal
(IFR3/EP4 TF = 1)
reception flag to 1
INTN (Time out)
INTN (SOF)
FIFO B side
FIFO A side
From figure
36.13
A
Time stamps do not match
Read time stamp register
Section 36 USB Function Controller (USBF)
Rev. 1.00 Oct. 01, 2007 Page 1571 of 1956
H, L (TSRH,TSRL)
(IFR4/TMOUT = 0)
Clear time out flag
Clear SOF packet
(IFR2/SOF = 0)
Interrupt end
Interrupt end
detection flag
Firmware
FIFO B side
FIFO A side
REJ09B0256-0100