upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 349

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

the program execution when power is supplied.
The following flowcharts illustrate the program execution when the host is disconnected and then reconnected, and
Remark
Figure 12-7. Flowchart of Program When Host Is Disconnected and Then Reconnected
n = 0 to 2
CHAPTER 12 USB FUNCTION CONTROLLER (USBF)
Disables USE bus, enables
measures against floating
Automatic device setup
interrupt detecting host
Initialization processing
interrupt detecting host
Unmasks USB-related
Masks INTUSBnB and
Preliminary User’s Manual U19014EJ1V0UD
Checks status of pin
INTRSUM interrupts
Checks status of pin
Host disconnected?
discards interrupts
connection status
connection status
Host connected?
of register area
interrupts and
by Plug&Play
START
END
Yes
Yes
No
No
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