Mazda 2009 RX-8, Особенности сервиса

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CONTROL SYSTEM
09-40–6
MECHANISM OF CAN (CONTROLLER AREA NETWORK) SYSTEM-RELATED MODULE STRUCTURE
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The CAN system related module consists of a power supply circuit, CPU, input/output interface, and twisted
pair wiring harnesses.
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With the utilization of twisted pair wiring harnesses, the now-redundant input/output parts integrated in the
conventional modules have been simplified.
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The CAN system related module is completely controlled by the CPU.
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The CPU consists of a multiplex block and computation processing block.
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Each component part has the following functions:
End Of Sie
Component Function
Electrical circuit Supplies power to the CPU and surrounding area and input/output interface.
CPU
Computation
processing block
When transmission is necessary, transmission data is written to the multiplex block.
In addition, when a transmission data write command is received from the multiplex block,
the received data is written.
Multiplex block
Receives data from twisted pair wiring harnesses and sends it to the computation
processing block.
Sends data written by the computation processing block via the twisted pair wiring
harnesses.
Input interface
Changes the electrical properties of information, such as switch information, to information
which can be input to the CPU.
Output interface
Changes the electrical properties of the CPU output in order to drive devices such as
motors.
INPUT
SIGNAL
OUTPUT
SIGNAL
CONNECTOR
INPUT
INTERFACE OUTPUT
INTERFACE
CPU
CONVENTIONAL MODULE
CPU
TWISTED PAIR
CONVENTIONAL
WIRING HARNESS
CONNECTOR
MULTIPLEX
BLOCK
INPUT
INTERFACE OUTPUT
INTERFACE
COMPUTATION
PROCESSING BLOCK
CAN SYSTEM-RELATED MODULE
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