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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AT85C5122D-RDRUM датащи(PDF) 181 Page - ATMEL Corporation |
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AT85C5122D-RDRUM датащи(HTML) 181 Page - ATMEL Corporation |
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181 / 208 page  181 AT83R5122, AT8xC5122/23 4202F–SCR–07/2008 Figure 109. Example of a Suspend/Resume Management Warning: The core must be switched in external clock mode before disabling the PLL. Smart Card Interface Entering in Power-down Mode In order to reduce the power consumption, a power-down or idle mode can be invoked by software (see Table 13, PCON register). Before activating these modes the applica- tion will need to: Power-off the Smart Card Interface by applying the following sequence: • Set CRST pin at low level by clearing the bit CARDRST in SCCON register. • Set CCLK pin at low level by clearing the bit CLK then the CARDCLK in SCCON register. • Set CIO pin at low level by clearing the bit UART in SCICR register then the bit CARDIO in SCCON register. • Power the Smart Interface off by clearing the CARDVCC bit in SCCON register. This instruction enables to switch DC/DC converter off. CPRES input: • Set the bit PRSEN in ISEL register • Set the bit EX1 in IE0 register • Set the bit EA in the IE0 register • Invert the bit CPLEV in ISEL register (INT1 interrupt vector) • Clear the bit PRESIT in the ISEL register USB Controller Init Detection of a SUSPEND State SPINT Set SUSPCLK Disable PLL microcontroller in power-down Detection of a RESUME State WUPCPU Enable PLL Clear SUSPCLK Clear WUPCPU bit Clear SPINT Note : WUPCPU bit must be Cleared before enabling the PLL Put the USB pads in power down mode |
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