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MSC1202 Datasheet(PDF) 69 Page - Texas Instruments |
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MSC1202 Datasheet(HTML) 69 Page - Texas Instruments |
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69 / 92 page  MSC1200 MSC1201 MSC1202 SBAS317E − APRIL 2004 − REVISED MAY 2006 www.ti.com 69 Enable Interrupt Control (EICON) 7 6 5 4 3 2 1 0 Reset Value SFR D8h 0 1 EAI AI WDTI 0 0 0 40h EAI Enable Auxiliary Interrupt. The Auxiliary Interrupt accesses nine different interrupts which are masked and bit 5 identified by SFR registers PAI (SFR A5h), AIE (SFR A6h), and AISTAT (SFR A7h). 0 = Auxiliary Interrupt disabled (default). 1 = Auxiliary Interrupt enabled. AI Auxiliary Interrupt Flag. AI must be cleared by software before exiting the interrupt service routine, after the source bit 4 of the interrupt is cleared. Otherwise, the interrupt occurs again. Setting AI in software generates an Auxiliary Interrupt, if enabled. 0 = No Auxiliary Interrupt detected (default). 1 = Auxiliary Interrupt detected. WDTI Watchdog Timer Interrupt Flag. WDTI must be cleared by software before exiting the interrupt service routine. bit 3 Otherwise, the interrupt occurs again. Setting WDTI in software generates a watchdog time interrupt, if enabled. The Watchdog timer can generate an interrupt or reset. The interrupt is available only if the reset action is disabled in HCR0. 0 = No Watchdog Timer Interrupt Detected (default). 1 = Watchdog Timer Interrupt Detected. ADC Results Low Byte (ADRESL) 7 6 5 4 3 2 1 0 Reset Value SFR D9h LSB 00h ADRESL ADC Results Low Byte. This is the low byte of the ADC results. bits 7−0 Reading from this register clears the ADC interrupt; however, AI in EICON (SFR D8) must also be cleared. ADC Results Middle Byte (ADRESM) 7 6 5 4 3 2 1 0 Reset Value SFR DAh 00h ADRESM ADC Results Middle Byte. This is the middle byte of the ADC results for the MSC1200/01 and the most significant byte for the MSC1202. bits 7−0 ADC Results High Byte (ADRESH) 7 6 5 4 3 2 1 0 Reset Value SFR DBh MSB 00h ADRESH ADC Results High Byte. This is the high byte and most significant byte of the ADC results for the MSC1200/01. bits 7−0 This is a sign-extended (Bipolar mode) or zero-padded (Unipolar mode) byte for the MSC1202 (that is, all 0s for positive ADC or unipolar results and all 1s for negative ADC results). |
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