SH7670 datasheet(35/1292 Pages) RENESAS

35 / 1292 page

Section 1 Overview

Rev. 1.00 Nov. 14, 2007 Page 9 of 1262

REJ09B0437-0100

Classification

Module/Function Description

Host interface

(HIF)

• On-chip 4-kbyte buffer RAM (two 2-kbyte banks)

• Parallel connection of buffer RAM and external device

with sixteen data pins

• Parallel connection of buffer RAM and the CPU of this LSI

with the internal bus

• A connected external device can access desired register

after the register index was specified (However,

addresses can be automatically updated during

continuous buffer RAM access)

• Endian switchable

• An interrupt can be requested to a connected external

device

• An internal interrupt can be requested to the CPU of this

LSI

• Allows booting from the buffer RAM by storing the

instruction code beforehand from the external device in

the buffer RAM

Advanced

interface

Serial

communication

interface with

FIFO (SCIF)

• Three channes

• Clock synchronous mode or asynchronous mode

selectable

• Supports simultaneous transmission and reception (full-

duplex communication)

• Dedicated baud rate generator

• Separate 16-byte FIFO registers for transmission and

reception

• Modem control function (asynchronous mode)

SH7670 Datasheet(PDF) 35 Page - Renesas Technology Corp