C8051F340-GQR Silicon Laboratories Inc, C8051F340-GQR Datasheet - Page 52

• Manufacturer Part Number: C8051F340-GQR
• Description: MCU 8-Bit C8051F34x 8051 CISC 64KB Flash 3.3V/5V 48-Pin TQFP T/R
• Manufacturer: Silicon Laboratories Inc

Specifications of C8051F340-GQR

• Package: 48TQFP
• Device Core: 8051
• Family Name: C8051F34x
• Maximum Speed: 48 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 40
• Interface Type: I2C/SMBus/SPI/UART/USB
• On-chip Adc: 17-chx10-bit
• Number Of Timers: 4
• Ram Size: 4.25 KB
• Program Memory Size: 64 KB
• Program Memory Type: Flash
• Operating Temperature: -40 to 85 °C

C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
5.4.
The ADC Programmable Window Detector continuously compares the ADC0 conversion results to
user-programmed limits, and notifies the system when a desired condition is detected. This is especially
effective in an interrupt-driven system, saving code space and CPU bandwidth while delivering faster sys-
tem response times. The window detector interrupt flag (AD0WINT in register ADC0CN) can also be used
in polled mode. The ADC0 Greater-Than (ADC0GTH, ADC0GTL) and Less-Than (ADC0LTH, ADC0LTL)
registers hold the comparison values. The window detector flag can be programmed to indicate when mea-
sured data is inside or outside of the user-programmed limits, depending on the contents of the ADC0
Less-Than and ADC0 Greater-Than registers.
The Window Detector registers must be written with the same format (left/right justified, signed/unsigned)
as that of the current ADC configuration (left/right justified, single-ended/differential).
52
Bits7–0: High byte of ADC0 Greater-Than Data Word.
Bits7–0: Low byte of ADC0 Greater-Than Data Word.
R/W
R/W
Bit7
Bit7
Programmable Window Detector
SFR Definition 5.7. ADC0GTH: ADC0 Greater-Than Data High Byte
SFR Definition 5.8. ADC0GTL: ADC0 Greater-Than Data Low Byte
R/W
R/W
Bit6
Bit6
R/W
R/W
Bit5
Bit5
R/W
R/W
Bit4
Bit4
Rev. 1.3
R/W
R/W
Bit3
Bit3
R/W
R/W
Bit2
Bit2
R/W
R/W
Bit1
Bit1
R/W
R/W
Bit0
Bit0
SFR Address:
SFR Address:
Reset Value
Reset Value
11111111
11111111
0xC3
0xC4