r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1626

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

Section 36 USB Function Controller (USBF)
In applications that do not require USB cable connection to be detected, processing by the USB
connection or disconnection detection interrupt is not necessary. Preparations should be made with
the bus reset interrupt.
Also, in applications that require connection detection regardless of D+ pull-up control, detection
should be carried out using IRQ or a general input port.
36.4.2
In applications that require connection/disconnection detection regardless of D+ pull-up control,
detection should be carried out using IRQ or a general input port.
Rev. 1.00 Oct. 01, 2007 Page 1560 of 1956
REJ09B0256-0100
Cable Disconnection
USB cable disconnection
USBF_VBUS pin = 1
USBF_VBUS pin = 0
Cable connected
USB function
UDC core reset
Figure 36.4 Cable Disconnection Operation
End
disconnection detection interrupt
IFR0/VBUSF = 1, VBUSMN = 0
USB connection or
Application