C8051F061-GQR Silicon Laboratories Inc, C8051F061-GQR Datasheet - Page 100
C8051F061-GQR
Manufacturer Part Number
C8051F061-GQR
Description
IC 8051 MCU 64K FLASH 64TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F06xr
Specifications of C8051F061-GQR
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
CAN, SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
24
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 2x16b, 8x10b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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7.3.2. Window Detector In Differential Mode
Figure 7.17 shows two example window comparisons for right-justified, differential data, with
ADC2LTH:ADC2LTL = 0x0040 (+64d) and ADC2GTH:ADC2GTH = 0xFFFF (-1d). In differential mode, the
measurable voltage between the input pins is between -VREF and VREF*(511/512). Output codes are rep-
resented as 10-bit 2’s complement signed integers. In the left example, an AD2WINT interrupt will be gen-
erated if the ADC2 conversion word (ADC2H:ADC2L) is within the range defined by ADC2GTH:ADC2GTL
and ADC2LTH:ADC2LTL (if 0xFFFF (-1d) < ADC2H:ADC2L < 0x0040 (64d)). In the right example, an
AD2WINT interrupt will be generated if the ADC2 conversion word is outside of the range defined by the
ADC2GT and ADC2LT registers (if ADC2H:ADC2L < 0xFFFF (-1d) or ADC2H:ADC2L > 0x0040 (+64d)).
Figure 7.18 shows an example using left-justified data with the same comparison values.
100
VREF x (511/512)
VREF x (511/512)
VREF x (64/512)
VREF x (64/512)
VREF x (-1/512)
VREF x (-1/512)
Input Voltage
Input Voltage
(P1.x - P1.y)
(P1.x - P1.y)
-VREF
-VREF
Figure 7.17. ADC Window Compare Example: Right-Justified Differential Data
Figure 7.18. ADC Window Compare Example: Left-Justified Differential Data
ADC2H:ADC2L
ADC2H:ADC2L
0xFFFF
0xFFFE
0x7FC0
0x0FC0
0xFFC0
0xFF80
0x01FF
0x0041
0x0040
0x003F
0x0000
0x0200
0x1040
0x1000
0x0000
0x8000
ADC2GTH:ADC2GTL
ADC2GTH:ADC2GTL
ADC2LTH:ADC2LTL
ADC2LTH:ADC2LTL
not affected
not affected
not affected
not affected
AD2WINT
AD2WINT
AD2WINT
AD2WINT
AD2WINT=1
AD2WINT=1
Rev. 1.2
VREF x (511/512)
VREF x (511/512)
VREF x (64/512)
VREF x (64/512)
VREF x (-1/512)
VREF x (-1/512)
Input Voltage
Input Voltage
(P1.x - P1.y)
(P1.x - P1.y)
-VREF
-VREF
ADC2H:ADC2L
ADC2H:ADC2L
0xFFC0
0xFFFF
0xFFFE
0x7FC0
0x0FC0
0xFF80
0x01FF
0x0041
0x0040
0x003F
0x0000
0x0200
0x1040
0x1000
0x0000
0x8000
ADC2GTH:ADC2GTL
ADC2GTH:ADC2GTL
ADC2LTH:ADC2LTL
ADC2LTH:ADC2LTL
not affected
not affected
AD2WINT
AD2WINT
AD2WINT=1
AD2WINT=1
AD2WINT=1
AD2WINT=1
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