C8051F045R Silicon Labs, C8051F045R Datasheet - Page 86

• Manufacturer Part Number: C8051F045R
• Description: 8-bit Microcontrollers - MCU 25 MIPS 64KB 10ADC
• Manufacturer: Silicon Labs

Specifications of C8051F045R

• Product Category: 8-bit Microcontrollers - MCU
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 4.25 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.7 V to 3.6 V
• Package / Case: TQFP-64
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit
• A/d Channels Available: 13
• Data Rom Size: 64 KB
• Interface Type: CAN, SMBus, SPI, UART
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 32
• Number Of Timers: 16 bit
• Processor Series: C8051
• Program Memory Type: Flash
• Factory Pack Quantity: 500
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.7 V

C8051F040/1/2/3/4/5/6/7
86
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. (In two’s-complement math,
0xFFFF = -1.)
Given:
REF x (511/512)
REF x (256/512)
REF x (-1/512)
Input Voltage
(AD0 - AD1)
-REF
ADC Data
Figure 6.9. 10-Bit ADC0 Window Interrupt Example:
0xFFFF
0xFFFE
0x01FF
0x00FF
0xFE00
0x0101
0x0100
0x0000
Word
ADC0LTH:ADC0LTL
ADC0GTH:ADC0GTL
Right Justified Differential Data
AD0WINT
not affected
AD0WINT=1
AD0WINT
not affected
Rev. 1.5
AMX0SL = 0x00, AMX0CF = 0x01, ADLJST = 0,
ADC0LTH:ADC0LTL = 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. (In two’s-complement math,
0xFFFF = -1.)
REF x (511/512)
REF x (256/512)
REF x (-1/512)
Input Voltage
(AD0 - AD1)
-REF
ADC Data
0xFFFF
0xFFFE
0x01FF
0x00FF
0xFE00
0x0101
0x0100
0x0000
Word
ADC0GTH:ADC0GTL
ADC0LTH:ADC0LTL
AD0WINT=1
AD0WINT
not affected
AD0WINT=1