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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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T89C5115-RATIM датащи(PDF) 73 Page - ATMEL Corporation |
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T89C5115-RATIM датащи(HTML) 73 Page - ATMEL Corporation |
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73 / 113 page  73 AT89C5115 4128F–8051–05/06 PCA Modules Each one of the two compare/capture modules has six possible functions. It can perform: • 16-bit Capture, positive-edge triggered • 16-bit Capture, negative-edge triggered • 16-bit Capture, both positive and negative-edge triggered • 16-bit Software Timer • 16-bit High Speed Output • 8-bit Pulse Width Modulator. Each module in the PCA has a special function register associated with it (CCAPM0 for module 0 ...). The CCAPM0:1 registers contain the bits that control the mode that each module will operate in. • The ECCF bit enables the CCF flag in the CCON register to generate an interrupt when a match or compare occurs in the associated module. • The PWM bit enables the pulse width modulation mode. • The TOG bit when set causes the CEX output associated with the module to toggle when there is a match between the PCA counter and the module’s capture/compare register. • The match bit MAT when set will cause the CCFn bit in the CCON register to be set when there is a match between the PCA counter and the module’s capture/compare register. • The two bits CAPN and CAPP in CCAPMn register determine the edge that a capture input will be active on. The CAPN bit enables the negative edge, and the CAPP bit enables the positive edge. If both bits are set both edges will be enabled. • The bit ECOM in CCAPM register when set enables the comparator function. |
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