HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 825

• Manufacturer Part Number: HD6417641
• Manufacturer: RENESAS [Renesas Technology Corp]

Clear EP1 FIFO full status
(USBIFR0/EP1 FULL = 1)
(USBIFR0/EP1 FULL = 0)
Data reception from host
Set EP1 FIFO full status
OUT token reception
EP1 FIFOs empty?
in EP1 FIFO?
USB function
Figure 20.10 EP1 Bulk-OUT Transfer Operation
Space
Both
Yes
Yes
ACK
NACK
No
No
Interrupt request
Interrupt request
Read USBEP1 receive data
data register (USBEPDR1)
(USBTRG/EP1 RDFN = 1)
size register (USBEPSZ1)
Rev. 4.00 Sep. 14, 2005 Page 775 of 982
Read data from USBEP1
Write 1 to EP1 read
complete bit
Application
Section 20 USB Function Module
REJ09B0023-0400