32-Bit Modular Microcontroller
Freescale Semiconductor
Technical Summary
32-Bit Modular Microcontroller
Order this document by MC68331TS/D Rev. 2
MC68...
Description
Freescale Semiconductor
Technical Summary
32-Bit Modular Microcontroller
Order this document by MC68331TS/D Rev. 2
MC68331
1 Introduction
The MC68331, a highly-integrated 32-bit microcontroller, combines high-performance data manipulation capabilities with powerful peripheral subsystems. The MCU is built up from standard modules that interface through a common intermodule bus (IMB). Standardization facilitates rapid development of devices tailored for specific applications.
The MCU incorporates a 32-bit CPU (CPU32), a system integration module (SIM), a general-purpose timer (GPT), and a queued serial module (QSM).
The MCU can either synthesize an internal clock signal from an external reference or use an external clock input directly. Operation with a 32.768-kHz reference frequency is standard. The maximum system clock speed is 20.97 MHz. Because MCU operation is fully static, register and memory contents are not affected by a loss of clock.
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