C8051F022-GQR Silicon Laboratories Inc, C8051F022-GQR Datasheet - Page 221
C8051F022-GQR
Manufacturer Part Number
C8051F022-GQR
Description
IC 8051 MCU 64K FLASH 100TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F02xr
Specifications of C8051F022-GQR
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
64
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, 8x10b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
For Use With
336-1200 - DEV KIT FOR F020/F021/F022/F023
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Part Number:
C8051F022-GQR
Manufacturer:
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C8051F020/1/2/3
21.3. Frame and Transmission Error Detection
Frame error detection is available in the following modes when the SSTAT1 bit in register PCON is set to logic 1.
Note: The SSTAT1 bit must be logic 1 to access any of the status bits (FE1, RXOVR1, and TXCOL1). To access the
UART1 Mode Select bits (SM01, SM11, and SM21), the SSTAT1 bit must be logic 0.
All Modes:
The Transmit Collision bit (TXCOL1 bit in register SCON1) reads ‘1’ if user software writes data to the SBUF1 reg-
ister while a transmit is in progress. Note that the TXCOL1 bit also functions as the SM21 bit when the SSTAT1 bit in
register PCON is logic 0.
Modes 1, 2, and 3:
The Receive Overrun bit (RXOVR1 in register SCON1) reads ‘1’ if a new data byte is latched into the receive buffer
before software has read the previous byte. Note that the RXOVR1 bit also functions as the SM11 bit when the
SSTAT1 bit in register PCON is logic 0.
The Frame Error bit (FE1 in register SCON1) reads ‘1’ if an invalid (low) STOP bit is detected. Note that the FE1 bit
also functions as the SM01 bit when the SSTAT1 bit in register PCON is logic 0.
Rev. 1.4
221
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