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ST72334J Arkusz danych(PDF) 97 Page - STMicroelectronics |
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ST72334J Arkusz danych(HTML) 97 Page - STMicroelectronics |
97 / 125 page ST72334J/N, ST72314J/N, ST72124J 97/125 8-BIT A/D CONVERTER (ADC) (Cont’d) 6.7.6 Register Description CONTROL/STATUS REGISTER (CSR) Read/Write Reset Value: 0000 0000 (00h) Bit 7 = COCO Conversion Complete This bit is set by hardware. It is cleared by soft- ware reading the result in the DR register or writing to the CSR register. 0: Conversion is not complete 1: Conversion can be read from the DR register Bit 6 = Reserved. must always be cleared. Bit 5 = ADON A/D Converter On This bit is set and cleared by software. 0: A/D converter is switched off 1: A/D converter is switched on Bit 4 = Reserved. must always be cleared. Bit 3:0 = CH[3:0] Channel Selection These bits are set and cleared by software. They select the analog input to convert. *Note: The number of pins AND the channel selection var- ies according to the device. Refer to the device pinout. DATA REGISTER (DR) Read Only Reset Value: 0000 0000 (00h) Bit 7:0 = D[7:0] Analog Converted Value This register contains the converted analog value in the range 00h to FFh. Note: Reading this register reset the COCO flag. 70 COCO 0 ADON 0 CH3 CH2 CH1 CH0 Channel Pin* CH3 CH2 CH1 CH0 AIN0 0 0 0 0 AIN1 0 0 0 1 AIN2 0 0 1 0 AIN3 0 0 1 1 AIN4 0 1 0 0 AIN5 0 1 0 1 AIN6 0 1 1 0 AIN7 0 1 1 1 AIN8 1 0 0 0 AIN9 1 0 0 1 AIN10 1 0 1 0 AIN11 1 0 1 1 AIN12 1 1 0 0 AIN13 1 1 0 1 AIN14 1 1 1 0 AIN15 1 1 1 1 70 D7 D6 D5 D4 D3 D2 D1 D0 |
Podobny numer części - ST72334J |
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Podobny opis - ST72334J |
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