Description
Set breakDetected only when nonnegative lowBits strictly exceeds positive frameBits; return zero-floored excessBits.
UART frames combine a start bit, data, optional parity, and stop duration. Baud rate and framing choices jointly determine time and overhead, while polarity and parity correctness are separate checks.
Set breakDetected only when nonnegative lowBits strictly exceeds positive frameBits; return zero-floored excessBits.
When to use this tool
Use Uart Break Detection Bit Budget when you need one UART timing, framing, or field calculation.
How to use the tool and how it works
- Enter lowBits, frameBits. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read breakDetected, excessBits. Inspect breakDetected before interpreting the associated values.
Set breakDetected only when nonnegative lowBits strictly exceeds positive frameBits; return zero-floored excessBits.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| lowBits | Low Bits | Required. Finite number. |
| frameBits | Frame Bits | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| breakDetected | Break Detected | Required. Boolean. |
| excessBits | Excess Bits | Required. Finite number. |
{
"input": {
"lowBits": 12,
"frameBits": 10
},
"output": {
"breakDetected": true,
"excessBits": 2
}
}Limitations and assumptions
- The exact equality case is not a break in this model; device-specific break detection rules may differ.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Confirm the device's supported frame format and clock budget, then inspect a measured serial waveform where needed.
References
Similar or alternative tools
- Uart Stopbit Half Bit Duration
Accept halfBits from 1 through 4 and divide by 2 × positive bitRate for seconds.
- Uart Stop Bit Half Slot Budget
Count one start bit, 5-9 data bits, 0-1 parity bits, and stopHalfBits in {2, 3, 4}.