Renesas CPU Board M3A-HS19 Manuel d'utilisateur télécharger pdf (Page 28)

SH7285/SH7286 USB Function Module

USB to Serial Conversion Application Note

3.3.2 Serial IN Communication

Serial IN communication is activated by the serial receive interrupt and executed by the ActSerialIn function. The

sample program stores serially-received data in the RAM for the bulk IN transfer. When the RAM is full, the sample

program transmits Xoff in serial communication to disable the serial IN communication.

Figure 3.8 shows an operation

flowchart of the Serial IN Communication.

Figure 3.8 Serial IN Communication

REJ05B1152-0100/Rev.1.00 May 2008 Page 28 of 35

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Renesas CPU Board M3A-HS19 Manuel d'utilisateur Page 28