Preliminary C8051F120/1/2/3 C8051F124/5/6/7 - KEMT FEI TUKE

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C8051F120/1/2/3 C8051F124/5/6/7 Preliminary Figure 5.16. 12-Bit ADC0 Window Interrupt Example: Right Justified Single-Ended Data Input Voltage (AD0.0 - AGND) ADC Data Word Input Voltage (AD0.0 - AGND) ADC Data Word REF x (4095/4096) 0x0FFF REF x (4095/4096) 0x0FFF AD0WINT not affected AD0WINT=1 0x0201 0x0201 REF x (512/4096) REF x (256/4096) 0x0200 0x01FF 0x0101 0x0100 ADC0LTH:ADC0LTL AD0WINT=1 ADC0GTH:ADC0GTL REF x (512/4096) REF x (256/4096) 0x0200 0x01FF 0x0101 0x0100 ADC0GTH:ADC0GTL AD0WINT not affected ADC0LTH:ADC0LTL 0x00FF 0x00FF AD0WINT not affected AD0WINT=1 0 0x0000 0 0x0000 Given: AMX0SL = 0x00, AMX0CF = 0x00 AD0LJST = ‘0’, ADC0LTH:ADC0LTL = 0x0200, ADC0GTH:ADC0GTL = 0x0100. An ADC0 End of Conversion will cause an ADC0 Window Compare Interrupt (AD0WINT = ‘1’) if the resulting ADC0 Data Word is < 0x0200 and > 0x0100. Given: AMX0SL = 0x00, AMX0CF = 0x00, AD0LJST = ‘0’, ADC0LTH:ADC0LTL = 0x0100, ADC0GTH:ADC0GTL = 0x0200. An ADC0 End of Conversion will cause an ADC0 Window Compare Interrupt (AD0WINT = ‘1’) if the resulting ADC0 Data Word is > 0x0200 or < 0x0100. Page 60 DS008-0.8-AUG02 © 2002 Cygnal Integrated Products, Inc.
Preliminary C8051F120/1/2/3 C8051F124/5/6/7 Figure 5.17. 12-Bit ADC0 Window Interrupt Example: Right Justified Differential Data Input Voltage (AD0.0 - AD0.1) ADC Data Word Input Voltage (AD0.0 - AD0.1) ADC Data Word REF x (2047/2048) 0x07FF REF x (2047/2048) 0x07FF AD0WINT not affected AD0WINT=1 0x0101 0x0101 REF x (256/2048) REF x (-1/2048) 0x0100 0x00FF 0x0000 0xFFFF ADC0LTH:ADC0LTL AD0WINT=1 ADC0GTH:ADC0GTL REF x (256/2048) REF x (-1/2048) 0x0100 0x00FF 0x0000 0xFFFF ADC0GTH:ADC0GTL AD0WINT not affected ADC0LTH:ADC0LTL 0xFFFE 0xFFFE AD0WINT not affected AD0WINT=1 -REF 0xF800 Given: AMX0SL = 0x00, AMX0CF = 0x01, AD0LJST = ‘0’, ADC0LTH:ADC0LTL = 0x0100, ADC0GTH:ADC0GTL = 0xFFFF. An ADC0 End of Conversion will cause an ADC0 Window Compare Interrupt (AD0WINT = ‘1’) if the resulting ADC0 Data Word is < 0x0100 and > 0xFFFF. (In two’s-complement math, 0xFFFF = -1.) -REF 0xF800 Given: AMX0SL = 0x00, AMX0CF = 0x01, AD0LJST = ‘0’, ADC0LTH:ADC0LTL = 0xFFFF, ADC0GTH:ADC0GTL = 0x0100. An ADC0 End of Conversion will cause an ADC0 Window Compare Interrupt (AD0WINT = ‘1’) if the resulting ADC0 Data Word is < 0xFFFF or > 0x0100. (In two’s-complement math, 0xFFFF = -1.) © 2002 Cygnal Integrated Products, Inc. DS008-0.8-AUG02 Page 61
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Preliminary C8051F120/1/2/3 C8051F124/5/6/7 - KEMT FEI TUKE

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