C8051F302 Silicon Laboratories Inc, C8051F302 Datasheet - Page 42

• Manufacturer Part Number: C8051F302
• Description: IC 8051 MCU 8K FLASH 11MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F30xr

Specifications of C8051F302

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), UART/USART
• Peripherals: POR, PWM, Temp Sensor, WDT
• Number Of I /o: 8
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 11-VQFN
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C, SMBus, UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 8
• Number Of Timers: 16 bit
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No

C8051F300/1/2/3/4/5
5.4.2. Window Detector In Differential Mode
Figure 5.11 shows two example window comparisons for differential mode, with ADC0LT = 0x10 (+16d) and
ADC0GT = 0xFF (-1d). Notice that in Differential mode, the codes vary from -VREF to VREF*(127/128) and are
represented as 8-bit 2’s complement signed integers. In the left example, an AD0WINT interrupt will be generated if
the ADC0 conversion word (ADC0L) is within the range defined by ADC0GT and ADC0LT (if 0xFF (-1d) < ADC0
< 0x10 (16d)). In the right example, an AD0WINT interrupt will be generated if ADC0 is outside of the range defined
by ADC0GT and ADC0LT (if ADC0 < 0xFF (-1d) or ADC0 > 0x10 (+16d)).
42
REF x (127/128)
REF x (16/128)
REF x (-1/256)
Input Voltage
(P0.x - P0.y)
-REF
Figure 5.11. ADC Window Compare Examples, Differential Mode
0x80 (-128d)
0x7F (127d)
0x11 (17d)
0x10 (16d)
0x0F (15d)
0xFF (-1d)
0xFE (-2d)
0x00 (0d)
ADC0
not affected
not affected
AD0WINT
AD0WINT
ADC0GT
ADC0LT
AD0WINT=1
Rev. 2.3
REF x (127/128)
REF x (16/128)
REF x (-1/256)
Input Voltage
(P0.x - P0.y)
-REF
0x80 (-128d)
0x7F (127d)
0x11 (17d)
0x10 (16d)
0x0F (15d)
0xFF (-1d)
0xFE (-2d)
0x00 (0d)
ADC0
not affected
AD0WINT
ADC0GT
ADC0LT
AD0WINT=1
AD0WINT=1