Toshiba T2N User Manual Page 111

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2.INTERNAL OPERATIONS
98 PROSEC T2N
The T2N basic operation flow chart is shown below.
T2N performs diagnostics following power on and the first system initialization.
In the absence of abnormalities, peripheral support is processed. However, if
the programmer and the computer link is not required, this operation is not
executed.
Next, if the RUN mode transitional condition is fulfilled, the scan control begins.
The scan control is the basic function of the T2N for the user program execution
operation. And if the RUN mode transitional condition is not fulfilled, T2N enters
HALT mode and does not execute the program.
The details of these processes are explained in this section. Also, the diagnostics
are explained in 5 RAS functions.
System
initialization
Power on
Peripheral
support
Diagnostics
Scan control
Mode control
HALT mode
RUN mode
2.1
Basic Internal
Operation Flow
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