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17.4
Supplementary Notes on the USB Function
This section gives supplementary notes on using the USB function macro program.
■ Supplementary Notes on the USB Function
This section gives notes on the following items:
•
Double buffer
•
Controlling the D+ terminating resistor on the board
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Automatic response of macro program to USB standard request commands
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USB function macro program operation in the default status
•
USB clock control in the suspended status
•
Detection of USB connector connection and disconnection
•
Accuracy of UCLK48
•
Setting of transfer enable bit (BFOK) during control transfer
•
Precautions for control transfer
•
Macro program status after USB bus reset
CHAPTER 17 USB FUNCTION
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