15-28
IM DLM3054-01EN
Analyzing and Searching UART Signals (Option)
Analysis Source
Data: Searches for data patterns
For the UART data format, see “
” in chapter 4, “Triggering.”
Bus Setup (Setup)
Source (Source)
Set the analysis source to one of the settings below.
CH1 to CH4/LOGIC,* Math1 to Math4
* CH4 or LOGIC, whichever the corresponding key is illuminated, can be selected. If you select LOGIC, select
the source bit (bit 0 to bit 7).
Bit Rate (Bit Rate)
Select the UART signal’s data transfer rate from one of the settings below.
1200 bps, 2400 bps, 4800 bps, 9600 bps, 19200 bps, 38400 bps, 57600 bps, 115200 bps, User Define
If you select User Define, set the transfer rate in the range of 1000 bps to 10000000 bps in 100-bps steps.
Bit Order (Bit Order) and Polarity (Polarity)
These items are the same as those of the UART signal.
Sample Point (Sample Point)
You can set the reference that will be used to determine the signal level in the range of 18.8 to 90.6% in 3.1%
steps.
Data Format (Format)
Select from the following.
• 8 bit No Parity: 8-bit data (no parity bit)
• 7 bit Parity: 7-bit data + parity bit
• 8 bit Parity: 8-bit data + parity bit
Parity (Parity)
Set the parity bit to even (Even) or odd (Odd).
Grouping (Grouping)
Select whether or not to group data when displaying the list of decoded results. When you turn grouping on, data
whose time is shorter than the specified byte space (Byte Space) is decoded and displayed in a single group.
• OFF: Does not group the list of decoded results
• ON: Groups the list of decoded results
15 Analyzing and Searching Serial Bus Signals