17.4.10 Macro Program Status After Usb Bus Reset - Fujitsu MB91319 Series Hardware Manual

17.4.10 Macro Program Status after USB Bus Reset

This section describes the macro program status after USB bus reset.
■ Macro Program Status after USB Bus Reset
The register values and FIFO buffer status in the macro program are not reset even when a USB
bus reset occurs. To start transfer on the USB after a USB bus reset, the registers and FIFO
buffers must be reset to the initial status by the application program.
Also, the initial settings of the end point buffer are not reset by a USB bus reset. The initial
settings are retained even after a USB bus reset. Therefore, the end point buffer need not be set
up again.
Note that the macro program enters the USB default status when a USB bus reset occurs.
CHAPTER 17 USB FUNCTION
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