SH7763 Datasheet, PDF (1626/2026 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

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 Cable Disconnection
USB function
Cable connected
USBF_VBUS pin = 1
Application
USB cable disconnection
USBF_VBUS pin = 0
UDC core reset
IFR0/VBUSF = 1, VBUSMN = 0
USB connection or
disconnection detection interrupt
End
Figure 36.4 Cable Disconnection Operation
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