SH7616 datasheet(27/935 Pages) RENESAS

27 / 935 page

Section 1 Overview

Rev. 2.00 Mar 09, 2006 page 1 of 906

REJ09B0292-0200

Section 1 Overview

1.1

Features of SuperH Microcomputer with On-Chip Ethernet

Controller

The SH7616 is a CMOS single-chip microcontroller that integrates a high-speed CPU core using

an original Renesas architecture with supporting functions required for an Ethernet system.

The CPU has a RISC (Reduced Instruction Set Computer) type instruction set. The CPU basically

operates at a rate of one instruction per cycle, offering a great improvement in instruction

execution speed. In addition, the 32-bit internal architecture provides improved data processing

power, and DSP functions have also been enhanced with the implementation of extended Harvard

architecture DSP data bus functions. With this CPU, it has become possible to assemble low-cost,

high-performance/high-functionality systems even for applications such as realtime control, which

could not previously be handled by microcontrollers because of their high-speed processing

requirements. The SH7616 also includes a maximum 4-kbyte cache, for greater CPU processing

power when accessing external memory.

The SH7616 is equipped with a media access controller (MAC) conforming to the IEEE802.3u

standard, and an Ethernet controller that includes a media independent interface (MII) standard

unit, enabling 10/100 Mbps LAN connection. Supporting functions necessary for system

configuration are also provided, including RAM, timers, a serial communication interface with

FIFO (SCIF), interrupt controller (INTC), and I/O ports.

To improve the efficiency of frame transmission/reception, the processing power of the DMAC for

the Ethernet controller is improved and the FIFO for the DMAC has 2 kbytes. A CAM match

signal input function is provided for systems that require multiple MAC addresses. In serial I/O

with three channels, one operates with the FIFO for better data processing power when connected

to the codec.

SH7616 Datasheet(PDF) 27 Page - Renesas Technology Corp