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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PIC16LC712-04/SS датащи(PDF) 18 Page - Microchip Technology |
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PIC16LC712-04/SS датащи(HTML) 18 Page - Microchip Technology |
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18 / 108 page  PIC16C712/716 DS41106A-page 18 Preliminary © 1999 Microchip Technology Inc. 2.2.2.6 PCON REGISTER The Power Control (PCON) register contains a flag bit to allow differentiation between a Power-on Reset (POR) to an external MCLR Reset or WDT Reset. These devices contain an additional bit to differentiate a Brown-out Reset condition from a Power-on Reset condition. FIGURE 2-9: PCON REGISTER (ADDRESS 8Eh) Note: If the BODEN configuration bit is set, BOR is ’1’ on Power-on Reset. If the BODEN configuration bit is clear, BOR is unknown on Power-on Reset. The BOR status bit is a "don't care" and is not necessarily predictable if the brown-out circuit is disabled (the BODEN configura- tion bit is clear). BOR must then be set by the user and checked on subsequent resets to see if it is clear, indicating a brown-out has occurred. U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-q — — — — — —POR BOR R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ - n = Value at POR reset bit7 bit0 bit 7-2: Unimplemented: Read as ’0’ bit 1: POR: Power-on Reset Status bit 1 = No Power-on Reset occurred 0 = A Power-on Reset occurred (must be set in software after a Power-on Reset occurs) bit 0: BOR: Brown-out Reset Status bit 1 = No Brown-out Reset occurred 0 = A Brown-out Reset occurred (must be set in software after a Brown-out Reset occurs) |
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