473
SECTION 7
CPU Unit Operation and Processing Time
This section explains the internal processing of the CQM1H CPU Unit, and the time required for processing and execution.
Refer to this section to gain an understanding of the precise timing of CQM1H operation.
7-1 CPU Unit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 474
7-2 Power Interruptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 475
7-2-1 Operation at Power Interruption . . . . . . . . . . . . . . . . . . . . . . . . . . . . 475
7-2-2 Startup Operation after a Power Interruption . . . . . . . . . . . . . . . . . . 477
7-3 Cycle Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 478
7-3-1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 478
7-3-2 Instruction Execution Times. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479
7-3-3 I/O Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 491
7-3-4 One-to-one Link I/O Response Time . . . . . . . . . . . . . . . . . . . . . . . . 493
7-3-5 Interrupt Processing Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495
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