C8051F018-GQR Silicon Laboratories Inc, C8051F018-GQR Datasheet - Page 33

• Manufacturer Part Number: C8051F018-GQR
• Description: IC 8051 MCU 16K FLASH 64TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F018r

Specifications of C8051F018-GQR

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: 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: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 2.8 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Processor Series: C8051F0x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1.25 KB
• Interface Type: I2C, SMBus, SPI, UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 4 bit
• Operating Supply Voltage: 2.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F005DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

5.3.
The ADC programmable window detector is very useful in many applications. It continuously compares the ADC
output to user-programmed limits and notifies the system when an out-of-band condition is detected. This is
especially effective in an interrupt-driven system, saving code space and CPU bandwidth while delivering faster
system response times. The window detector interrupt flag (ADWINT in ADC0CN) can also be used in polled
mode. The high and low bytes of the reference words are loaded into the ADC Greater-Than and ADC Less-Than
registers (ADC0GTH, ADC0GTL, ADC0LTH, and ADC0LTL). Figure 5.14 and Figure 5.15 show example
comparisons for reference. Notice that the window detector flag can be asserted when the measured data is inside
or outside the user-programmed limits, depending on the programming of the ADC0GTx and ADC0LTx registers.
33
Bits7-0:
The high byte of the ADC Greater-Than Data Word.
Bits7-0:
The low byte of the ADC Greater-Than Data Word.
Definition:
ADC Greater-Than Data Word = ADC0GTH:ADC0GTL
Bits7-0:
The high byte of the ADC Less-Than Data Word.
Bits7-0:
These bits are the low byte of the ADC Less-Than Data Word.
Definition:
ADC Less-Than Data Word = ADC0LTH:ADC0LTL
C8051F018
C8051F019
R/W
R/W
R/W
R/W
Bit7
Bit7
Bit7
Bit7
ADC Programmable Window Detector
R/W
R/W
R/W
R/W
Bit6
Bit6
Bit6
Bit6
Figure 5.10. ADC0GTH: ADC Greater-Than Data High Byte Register
Figure 5.11. ADC0GTL: ADC Greater-Than Data Low Byte Register
Figure 5.12. ADC0LTH: ADC Less-Than Data High Byte Register
Figure 5.13. ADC0LTL: ADC Less-Than Data Low Byte Register
R/W
R/W
R/W
R/W
Bit5
Bit5
Bit5
Bit5
R/W
R/W
R/W
R/W
Bit4
Bit4
Bit4
Bit4
Rev. 1.2
R/W
R/W
R/W
R/W
Bit3
Bit3
Bit3
Bit3
R/W
R/W
R/W
R/W
Bit2
Bit2
Bit2
Bit2
R/W
R/W
R/W
R/W
Bit1
Bit1
Bit1
Bit1
R/W
R/W
R/W
R/W
Bit0
Bit0
Bit0
Bit0
SFR Address:
SFR Address:
SFR Address:
SFR Address:
Reset Value
Reset Value
Reset Value
Reset Value
11111111
11111111
00000000
00000000
0xC5
0xC4
0xC7
0xC6