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ST10F280 датащи(PDF) 106 Page - STMicroelectronics |
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ST10F280 датащи(HTML) 106 Page - STMicroelectronics |
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106 / 186 page ![]() ST10F280 106/186 13.2 - Multiplexage of two blocks of 16 Analog Inputs The ADC can manage 16 analog inputs, so to increase its capability, a new XADCMUX register is added to control the multiplexage between the first block of 16 channels on Port5 and the second block of 16 channels on XPort10. The conversion result register stays identical and only a software management can determine the block in use. The XADCMUX register is enabled by setting XPEN bit 2 of the SYSCON register and bit 3 of the new XPERCON register XADCMUX (C384h) Reset Value: 0000h Figure 52 : Block Diagram 15 14 13 12 11 10 98765432 1 0 ------------- -- XADCMUX RW Bit Function XADCMUX.0 0 1 Default configuration,analog inputs on port P5.y can be converted Analog inputs on port XP10.y can be converted y = 15...0 Input latch Input latch ADC Read Port P5.y Read Port XP10.y Channel Select XADCMUX 0 1 CPU clock CPU clock P5.y XP10.y 16 16 XBUS Internal Bus |
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