HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 875
HD6417320
Manufacturer Part Number
HD6417320
Description
Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417320.pdf
(1524 pages)
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25.3.4
IFR1 is an interrupt flag register for EP4 TS, EP4 TF, EP5 TS, and EP5 TR. When each flag is set
to 1 and the interrupt is enabled in the corresponding bit of IER3, an interrupt request is generated
as specified by the corresponding bit in ISR3. Clearing is performed by writing 0 to the bit to be
cleared. Writing 1 is not valid and nothing is changed.
Bit
0
Bit
7 to 4
3
Bit Name
SETI
Bit Name
EP5 TR
Interrupt Flag Register 3 (IFR3)
Initial Value
0
Initial Value
All 0
0
R/W Description
R/W Set Interface Command Detection
R/W Description
R
R/W EP5 (Isochronous-in) Transmit Request
[Setting condition]
When the valid Set Interface command is detected.
[Clearing conditions]
•
•
Reserved
These bits are always read as 0. The write value
should always be 0.
Flag indicating the FIFO state of EP5.
After the SOF packet is received, the FIFO buffer is
switched automatically. The FIFO buffer which has
transmitted data to the host in the previous frame
(before SOF reception) can be written to by the CPU.
This bit indicates the transmit state in the previous
frame.
[Setting condition]
The FIFO buffer to be transmitted is empty when an IN
token is issued from the host to EP5.
[Clearing conditions]
•
•
When reset
When 0 is written to by CPU
When reset
When 0 is written to by CPU
Section 25
Rev. 3.00 Jan. 18, 2008 Page 813 of 1458
USB Function Controller (USBF)
REJ09B0033-0300
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