C8051F021 Silicon Laboratories Inc, C8051F021 Datasheet - Page 73

• Manufacturer Part Number: C8051F021
• Description: IC 8051 MCU 64K FLASH 64TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F02xr

Specifications of C8051F021

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 32
• 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 8x8b, 8x12b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Given:
AMX0SL = 0x00, AMX0CF = 0x01, ADLJST = 1,
ADC0LTH:ADC0LTL = 0x2000,
ADC0GTH:ADC0GTL = 0xFFC0.
An ADC End of Conversion will cause an ADC
Window Compare Interrupt (ADWINT=1) if the
resulting ADC Data Word is < 0x2000 and
> 0xFFC0. (Two’s-complement math.)
Figure 6.19. 10-Bit ADC0 Window Interrupt Example: Left Justified Differential Data
REF x (511/512)
REF x (128/512)
REF x (-1/512)
Input Voltage
(AD0 - AD1)
-REF
ADC Data
0x7FC0
0x1FC0
0xFFC0
0x2040
0x2000
0x0000
0xFF80
0x8000
Word
ADC0LTH:ADC0LTL
ADC0GTH:ADC0GTL
ADWINT
not affected
ADWINT=1
ADWINT
not affected
Rev. 1.4
Given:
AMX0SL = 0x00, AMX0CF = 0x01, ADLJST = 1,
ADC0LTH:ADC0LTL = 0xFFC0,
ADC0GTH:ADC0GTL = 0x2000.
An ADC End of Conversion will cause an ADC
Window Compare Interrupt (ADWINT=1) if the
resulting ADC Data Word is < 0xFFC0 or
> 0x2000. (Two’s-complement math.)
REF x (511/512)
REF x (128/512)
REF x (-1/512)
Input Voltage
(AD0 - AD1)
-REF
ADC Data
0x7FC0
0x1FC0
0xFFC0
0xFF80
0x2040
0x2000
0x0000
0x8000
Word
C8051F022/3
ADC0GTH:ADC0GTL
ADC0LTH:ADC0LTL
ADWINT=1
ADWINT
not affected
ADWINT=1
73