C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
Figure 6.14. 10-Bit ADC Window Interrupt Examples, Right Justified Data
Input Voltage
(AD0 - AGND)
REF x (1023/1024)
ADC Data
Word
0x03FF
ADWINT
not affected
0x0201
Input Voltage
(AD0 - AGND)
REF x (1023/1024)
ADC Data
Word
0x03FF
ADWINT=1
0x0201
ADC0LTH:ADC0LTL
ADWINT=1
REF x (512/1024)
0x0200
0x01FF
0x0101
ADC0GTH:ADC0GTL
REF x (256/1024)
0x0100
0x00FF
ADWINT=1
ADC0GTH:ADC0GTL
ADWINT
not affected
ADC0LTH:ADC0LTL
REF x (512/1024)
0x0200
0x01FF
0x0101
REF x (256/1024)
0x0100
0x00FF
ADWINT
not affected
0
0x0000
0
0x0000
Given:
AMX0SL = 0x00, AMX0CF = 0x00, ADLJST = 0,
ADC0LTH:ADC0LTL = 0x0200,
ADC0GTH:ADC0GTL = 0x0100.
An ADC End of Conversion will cause an ADC Window
Compare Interrupt (ADWINT=1) if the resulting ADC
Data Word is < 0x0200 and > 0x0100.
Given:
AMX0SL = 0x00, AMX0CF = 0x00, ADLJST = 0,
ADC0LTH:ADC0LTL = 0x0100,
ADC0GTH:ADC0GTL = 0x0200.
An ADC End of Conversion will cause an ADC Window
Compare Interrupt (ADWINT=1) if the resulting ADC
Data Word is < 0x0100 or > 0x0200.
Input Voltage
(AD0 - AD1)
REF x (511/512)
ADC Data
Word
0x01FF
ADWINT
not affected
0x0101
Input Voltage
(AD0 - AD1)
REF x (511/512)
ADC Data
Word
0x01FF
ADWINT=1
0x0101
ADC0LTH:ADC0LTL
ADWINT=1
REF x (256/512)
0x0100
0x00FF
0x0000
ADC0GTH:ADC0GTL
REF x (-1/512)
0xFFFF
0xFFFE
ADWINT=1
ADC0GTH:ADC0GTL
ADWINT
not affected
ADC0LTH:ADC0LTL
REF x (256/512)
0x0100
0x00FF
0x0000
REF x (-1/512)
0xFFFF
0xFFFE
ADWINT
not affected
-REF
0xFE00
-REF
0xFE00
Given:
AMX0SL = 0x00, AMX0CF = 0x01, ADLJST = 0,
ADC0LTH:ADC0LTL = 0x0100,
ADC0GTH:ADC0GTL = 0xFFFF.
An ADC End of Conversion will cause an ADC Window
Compare Interrupt (ADWINT=1) if the resulting ADC
Data Word is < 0x0100 and > 0xFFFF.
(Two’s
Complement math, 0xFFFF = -1.)
Given:
AMX0SL = 0x00, AMX0CF = 0x01, ADLJST = 0,
ADC0LTH:ADC0LTH = 0xFFFF,
ADC0GTH:ADC0GTL = 0x0100.
An ADC End of Conversion will cause an ADC Window
Compare Interrupt (ADWINT=1) if the resulting ADC
Data Word is < 0xFFFF or > 0x0100. (Two’s Complement
math, 0xFFFF = -1.)
Rev. 1.7
48
SILABS [ SILICON LABORATORIES ]
