поискавой системы для электроныых деталей |
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HT45R4U датащи(PDF) 57 Page - Holtek Semiconductor Inc |
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HT45R4U датащи(HTML) 57 Page - Holtek Semiconductor Inc |
57 / 105 page Rev. 1.10 �6 �a��� 1�� �01� Rev. 1.10 �7 �a��� 1�� �01� HT45R4U TinyPowerTM A/D Type e-Banking ASSP OTP MCU with LCD Example 2: using the interrupt method to detect the end of conversion clr ADE ; disable ADC interrupt mov a,03H mov ADCR1,a ; select fSYS/8 as A/D clock and switch off 1.25V Clr ADOFF mov a,0Fh ; setup ACER to configure analog pins AN0~AN3 mov ACER,a mov a,00h mov ADCR0,a ; enable and connect AN0 channel to A/D converter Start_conversion: clr START ; high pulse on START bit to initiate conversion set START ; reset A/D clr START ; start A/D clr ADF ; clear ADC interrupt request flag set ADE ; enable ADC interrupt set EMI ; enable global interrupt : : ; ADC interrupt service routine ADC_ISR: mov acc_stack,a ; save ACC to user defined memory mov a,STATUS mov status_stack,a ; save STATUS to user defined memory : : mov a,ADRL ; read low byte conversion result value mov adrl_buffer,a ; save result to user defined register mov a,ADRH ; read high byte conversion result value mov adrh_buffer,a ; save result to user defined register : : EXIT_INT_ISR: mov a,status_stack mov STATUS,a ; restore STATUS from user defined memory mov a,acc_stack ; restore ACC from user defined memory reti |
Аналогичный номер детали - HT45R4U |
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Аналогичное описание - HT45R4U |
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