Renesas SH7045F series offers very high 32-bit RISC CPU performance combined
with a comprehensive peripheral set and 5V operation. The peripheral set
includes Renesas popular MTU timer unit, which is ideal to drive just about
any type of electrical motor.
The CPU has a RISC-type instruction set. Most instructions can be executed in
one clock cycle, which greatly improves instruction execution speed. In
addition, the 32-bit internal-bus architecture enhances data processing power.
With this CPU, it has become possible to assemble low cost, high
performance/high-functioning systems, even for applications that were
previously impossible with microprocessors, such as real-time control, which
demands high speeds. In particular, the SH7040 series has a 1-kbyte on-chip
cache, which allows an improvement in CPU performance during external memory
access.
In addition, the SH7040 series includes on-chip peripheral functions necessary
for system configuration, such as large-capacity ROM and RAM, timers, a serial
communication interface (SCI), an A/D converter, an interrupt controller, and
I/O ports. Memory or peripheral LSIs can be connected efficiently with an
external memory access support function. This greatly reduces system cost.
There are versions of on-chip ROM: mask ROM, PROM, and flash memory. The flash
memory can be programmed with a programmer that supports SH7040 series
programming, and can also be programmed and erased by software.