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Section 1 Overview and Pin Functions
1.1
SH7709S Features
This LSI is a single-chip RISC microprocessor that integrates a Hitachi-original RISC-type
TM
SuperH
* architecture CPU as its core that has an on-chip multiplier, cache memory, and a
memory management unit (MMU) as well as peripheral functions required for system
configuration such as a timer, a realtime clock, an interrupt controller, and a serial communication
interface. This LSI includes data protection, virtual memory, and other functions provided by
incorporating an MMU into a SuperH series microprocessor (SH-1 or SH-2).
High-speed data transfers can be performed by an on-chip direct memory access controller
(DMAC) and an external memory access support function enables direct connection to different
types of memory. The SH7709S microprocessor also supports an infrared communication
function, an A/D converter, and a D/A converter.
A powerful built-in power management function keeps power consumption low, even during high-
speed operation. This LSI can run at six times the frequency of the system bus operating speed,
making it optimum for electrical devices such as PDAs that require both high speed and low
power.
The features of this LSI is listed in table 1.1. The specifications are shown in table 1.2.
Note: SuperH is a trademark of Hitachi, Ltd.
1
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