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SH7285/SH7286 USB Function Module

USB to Serial Conversion Application Note

REJ05B1152-0100/Rev.1.00 May 2008 Page 2 of 35

1. Introduction

1.1 Specifications

This document describes how to use the SH7285/SH7286 USB function module, and how to implement a USB to

serial conversion system as an application example of the USB function module.

1.2 Functions

• USB function module

• Serial communication interface with FIFO (SCIF)

1.3 Applicable Conditions

• MCUs : SH7285 and SH7286

• Operating frequency : 100 MHz internal clock

50 MHz bus clock

50 MHz peripheral clock

• C compiler : Renesas Technology

SuperH RISC engine Family C/C++ Compiler Package Ver.9.01 Release 01

• Compile options : -cpu=sh2a -include="$(WORKSPDIR)¥inc"

-object="$(CONFIGDIR)¥$(FILELEAF).obj" -debug -gbr=auto

-chgincpath-errorpath -global_volatile=0 -opt_range=all

-infinite_loop=0-del_vacant_loop=0 -struct_alloc=1 –nologo

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Renesas M3A-HS85 Technical Information Seite 4