HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 911

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

25.5
Figure 25.14
EP4 Isochronous-Out Transfer
Data reception from host
Data reception from host
Out-token reception
Out-token reception
(IFR3/EP4 TS = 1)
(IFR3/EP4 TS = 1)
FIFO buffer switch over
FIFO buffer switch over
reception flag to 1
reception flag to 1
SOF reception
Set EP4 normal
SOF reception
Set EP4 normal
receive data?
receive data?
No errorin
No errorin
USB function
EP4 Isochronous-Out Transfer Operation (SOF is Normal)
Yes
Yes
No
No
Interrupt request (SOF)
Interrupt request (SOF)
Set EP4 abnormal
(IFR3/EP4 TF = 1)
Set EP4 abnormal
(IFR3/EP4 TF = 1)
reception flag to 1
reception flag to 1
FIFO B side
FIFO A side
register H, L(TSRH,TSRL)
receive data size register
register H, L(TSRH,TSRL)
receive data size register
Section 25
(IFR3/EP4 TS, EP4 TF)
(IFR3/EP4 TS, EP4 TF)
Rev. 3.00 Jan. 18, 2008 Page 849 of 1458
from EP4 data register
from EP4 data register
Clear SOF packet
Read time stamp
Clear SOF packet
Read time stamp
Read EP4 flag
Read EP4 flag
(IFR2/SOF = 0)
(IFR2/SOF = 0)
detection flag
detection flag
Firmware
Read EP4
Read EP4
Time stamps
Yes
Time stamps
Yes
(EPSZ4)
(EPSZ4)
Read data
Read data
(EPDR4)
(EPDR4)
match?
match?
USB Function Controller (USBF)
FIFO B side
FIFO A side
No
No
To figure
To figure
25.15
25.15
REJ09B0033-0300
A
A