upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 350

• Manufacturer Part Number: upd78f0730
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

CHAPTER 12 USB FUNCTION CONTROLLER (USBF)
Figure 12-8. Flowchart of Program When Power Is Supplied
START
Masks INTUSBnB and
INTRSUM interrupts
Starts USBF clock supply
Initializes register area,
enables measures
against floating
Checks status of pin
interrupt detecting host
connection status
No
Host connected?
Yes
Unmasks USB-related
interrupts and discards
interrupts
Enables USE bus, disables
measures against floating
Automatic device setup
by Plug&Play
END
Remark
n = 0 to 2
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Preliminary User’s Manual U19014EJ1V0UD