mc68331cpv20b1 Freescale Semiconductor, Inc, mc68331cpv20b1 Datasheet - Page 15

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mc68331cpv20b1

Manufacturer Part Number
mc68331cpv20b1
Description
Mc68331 32 Bit Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
MC68331
USER’S MANUAL
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 applica-
tions.
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. Because MCU operation is fully static, register and memory contents are
not affected by a loss of clock.
High-density complementary metal-oxide semiconductor (HCMOS) architecture
makes the basic power consumption of the MCU low. Power consumption can be min-
imized by stopping the system clock. The CPU32 instruction set includes a low-power
stop (LPSTOP) command that efficiently implements this capability.
Documentation for the Modular Microcontroller Family follows the modular construc-
tion of the devices in the product line. Each microcontroller has a comprehensive us-
er's manual that provides sufficient information for normal operation of the device. The
user's manual is supplemented by module reference manuals that provide detailed in-
formation about module operation and applications. Refer to Freescale publication Ad-
vanced Microcontroller Unit (AMCU) Literature (BR1116/D) for a complete listing of
documentation.
Freescale Semiconductor, Inc.
For More Information On This Product,
SECTION 1INTRODUCTION
Go to: www.freescale.com
INTRODUCTION
1-1
1

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