HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 817

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

Also, in applications that require connection detection regardless of D+ pull-up control, detection
should be carried out using IRQx or a general input port. For details, see section 20.8, Example of
USB External Circuitry.
20.4.2
The flowchart in figure 20.3 shows the operation in the case for section 20.8, Example of USB
External Circuitry.
Cable Disconnection
USB cable disconnection
Cable connected
UDC core reset
Figure 20.3 Cable Disconnection Operation
VBUS pin = 1
VBUS pin = 0
USB function
End
Rev. 4.00 Sep. 14, 2005 Page 767 of 982
Section 20 USB Function Module
Application
REJ09B0023-0400