C8051F020-TB Silicon Laboratories Inc, C8051F020-TB Datasheet - Page 221
![BOARD PROTOTYPING W/C8051F020](/photos/28/94/289414/tqfp-100_sml.jpg)
C8051F020-TB
Manufacturer Part Number
C8051F020-TB
Description
BOARD PROTOTYPING W/C8051F020
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F020-TB
Contents
Board
Processor To Be Evaluated
C8051F02x
Interface Type
USB
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
C8051F020
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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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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