HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 19

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

1.1
The SH7615 is a CMOS single-chip microcontroller that integrates a high-speed CPU core using
an original Hitachi 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 SH7615 also includes a maximum 4-kbyte cache, for greater CPU processing
power when accessing external memory.
The SH7615 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.
Features of SuperH Microcomputer with On-Chip Ethernet
Controller
Section 1 Overview
1