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7477 Datasheet(PDF) 279 Page - Renesas Technology Corp

Part # 7477
Description  8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES
PDF  354 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7477 Datasheet(HTML) 279 Page - Renesas Technology Corp

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7470/7471/7477/7478 GROUP USER’S MANUAL
2-44
APPLICATION
2.8 Low-power dissipation function
7470
7471
7477
7478
(2) Ordinary mode
→ Wait mode → Ordinary mode
Specifications: The wait mode is executed by the WIT instruction.
Restoration to the ordinary mode is attained by INT0 interrupt.
Figure 2.8.3 shows an example of control procedure.
Fig. 2.8.3 Example of control procedure [Ordinary mode
→ Wait mode → Ordinary mode]
RTI
Clear the interrupt disable flag (each interrupt enable)
INT0 interrupt
Set the return interrupt source
Clear the INT0 interrupt request bit
Execute the NOP instruction
Set the INT0 interrupt enable bit
(INT0 interrupt enable)
Execute the WIT instruction
The next address of the WIT instruction



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