C8051F02X Datasheet, PDF (56/272 Pages) Silicon Laboratories – 8K ISP FLASH MCU Family

C8051F020/1
Figure 5.18. 12-Bit ADC0 Window Interrupt Example: Left Justified Single-Ended Data
Input Voltage
(AD0 - AGND)
REF x (4095/4096)
ADC Data
Word
0xFFF0
AD0WINT
not affected
REF x (512/4096)
REF x (256/4096)
0x2010
0x2000
0x1FF0
0x1010
0x1000
0x0FF0
ADC0LTH:ADC0LTL
AD0WINT=1
ADC0GTH:ADC0GTL
Input Voltage
(AD0 - AGND)
REF x (4095/4096)
ADC Data
Word
0xFFF0
AD0WINT=1
REF x (512/4096)
REF x (256/4096)
0x2010
0x2000
0x1FF0
0x1010
0x1000
0x0FF0
ADC0GTH:ADC0GTL
AD0WINT
not affected
ADC0LTH:ADC0LTL
AD0WINT
not affected
0
0x0000
Given:
AMX0SL = 0x00, AMX0CF = 0x00,
AD0LJST = ‘1’,
ADC0LTH:ADC0LTL = 0x2000,
ADC0GTH:ADC0GTL = 0x1000.
An ADC0 End of Conversion will cause an ADC0
Window Compare Interrupt (AD0WINT = ‘1’) if
the resulting ADC0 Data Word is < 0x2000 and
> 0x1000.
AD0WINT=1
0
0x0000
Given:
AMX0SL = 0x00, AMX0CF = 0x00,
AD0LJST = ‘1’
ADC0LTH:ADC0LTL = 0x1000,
ADC0GTH:ADC0GTL = 0x2000.
An ADC0 End of Conversion will cause an ADC0
Window Compare Interrupt (AD0WINT = ‘1’) if
the resulting ADC0 Data Word is < 0x1000 or
> 0x2000.
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Rev. 1.4