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GMS81C2012 Datasheet(PDF) 78 Page - Hynix Semiconductor |
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GMS81C2012 Datasheet(HTML) 78 Page - Hynix Semiconductor |
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78 / 107 page ![]() GMS81C2012/GMS81C2020 HYUNDAI MicroElectronics 78 MAR. 2000 Ver 1.00 17. Power Saving Mode For applications where power consumption is a critical factor, device provides four kinds of power saving func- tions, STOP mode, Sub-active mode and Wake-up Timer mode (Stand-by mode, Watch mode). Table 17-1 shows the status of each Power Saving Mode. The power saving function is activated by execution of STOP instruction and by execution of STOP instruction af- ter setting the corresponding status (WAKEUP) of CKCTLR. We shows the release sources from each Power Saving Mode Peripheral STOP Mode Sub-active Mode Wake-up Timer Mode Stand-by Mode Watch Mode RAM Retain Retain Retain Retain Control Registers Retain Retain Retain Retain I/O Ports Retain Retain Retain Retain CPU Stop Operation Stop Stop Timer0 Stop Operation Operation Operation Oscillation Stop Stop Oscillation Stop Sub Oscillation Stop Oscillation Stop Oscillation Prescaler Stop Operation ÷ 2048 only ÷ 2048 only Entering Condition [WAKEUP] 00 1 1 Table 17-1 Power Saving Mode Release Source STOP Mode Sub-active Mode Wake-up Timer Mode Stand-by Mode Watch Mode RESET O O O O RCWDT O O O O EXT.INT0 OO O O EXT.INT1 Timer0 X X O O Table 17-2 Release Sources from Power Saving Mode |
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