C8051F700DK Silicon Laboratories Inc, C8051F700DK Datasheet - Page 64

• Manufacturer Part Number: C8051F700DK
• Description: DEV KIT FOR C8051F700
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F700DK

• Contents: Board, Cables, CD, Debugger, Power Supply
• Processor To Be Evaluated: C8051F7x
• Processor Series: C8051F7xx
• Interface Type: USB
• Operating Supply Voltage: 3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: C8051F7xx
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1635

C8051F70x/71x
10.4.1. Window Detector Example
Figure 10.4
ADC0LTH:ADC0LTL = 0x0080 (128d) and ADC0GTH:ADC0GTL = 0x0040 (64d). The input voltage can
range from 0 to VREF x (1023/1024) with respect to GND, and is represented by a 10-bit unsigned integer
value. In the left example, an AD0WINT interrupt will be generated if the ADC0 conversion word
(ADC0H:ADC0L) is within the range defined by ADC0GTH:ADC0GTL and ADC0LTH:ADC0LTL
(if 0x0040 < ADC0H:ADC0L < 0x0080). In the right example, and AD0WINT interrupt will be generated if
the ADC0 conversion word is outside of the range defined by the ADC0GT and ADC0LT registers
(if ADC0H:ADC0L < 0x0040 or ADC0H:ADC0L > 0x0080). Figure 10.5 shows an example using left-justi-
fied data with the same comparison values.
64
VREF x (128/1024)
VREF x (128/1024)
VREF x (64/1024)
VREF x (64/1024)
VREF x (1023/
VREF x (1023/
Input Voltage
(AIN - GND)
Input Voltage
(AIN - GND)
1024)
1024)
0
0
Figure 10.4. ADC Window Compare Example: Right-Justified Data
shows
ADC0H:ADC0L
Figure 10.5. ADC Window Compare Example: Left-Justified Data
ADC0H:ADC0L
0xFFC0
0x1FC0
0x0FC0
0x2040
0x2000
0x1040
0x1000
0x0000
0x03FF
0x007F
0x003F
0x0081
0x0080
0x0041
0x0040
0x0000
two
ADC0GTH:ADC0GTL
ADC0GTH:ADC0GTL
ADC0LTH:ADC0LTL
example
ADC0LTH:ADC0LTL
not affected
not affected
not affected
not affected
AD0WINT
AD0WINT
AD0WINT
AD0WINT
AD0WINT=1
AD0WINT=1
window
Rev. 1.0
comparisons
VREF x (128/1024)
VREF x (128/1024)
VREF x (64/1024)
VREF x (64/1024)
VREF x (1023/
VREF x (1023/
Input Voltage
Input Voltage
(AIN - GND)
(AIN - GND)
1024)
1024)
0
0
ADC0H:ADC0L
ADC0H:ADC0L
for
0xFFC0
0x1FC0
0x0FC0
0x03FF
0x007F
0x003F
0x2040
0x2000
0x1040
0x1000
0x0000
0x0081
0x0080
0x0041
0x0040
0x0000
right-justified
ADC0GTH:ADC0GTL
ADC0GTH:ADC0GTL
ADC0LTH:ADC0LTL
ADC0LTH:ADC0LTL
not affected
not affected
AD0WINT
AD0WINT
data,
AD0WINT=1
AD0WINT=1
AD0WINT=1
AD0WINT=1
with