RIGOL MSO/DS1000Z Series User Manual

Page 178

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RIGOL

Chapter 8 Protocol Decoding

8-16

MSO1000Z/DS1000Z User’s Guide

5. Mode

 Timeout: you can perform frame synchronization according to the timeout

and the timeout must be greater than half of the clock cycle.

 CS: it contains a chip select line (CS). You can perform frame

synchronization according to CS. Press Mode to select "CS" and enter the

CS mode. At this point, you can select CS signal line and CS polarity. The CS
signal line can be CH1-CH4 or D0-D15. The CS polarity can be "

"

(high level is valid, namely the instrument starts transmitting data when the
CS is high level) or "

" (low level is valid, namely the instrument

starts transmitting data when the CS is low level).

6. Timeout

When there are only two lines, the decoder can find the right start frame

according to the timeout. The timeout must be greater than the maximum clock

pulse width and less than the idle time between frames. For the setting method,

please refer to the introduction in "Parameter Setting Method".

7. Edge Setting

Press Edge to set the instrument to sample MISO and MOSI on the rising edge
(

) or falling edge (

) of CLK.

8. Polarity Setting

Press Polarity to set the polarity of the SDA data line to

(high level is 1) or

(low level is 1).

9. Width Setting

Press Width to set the number of digits per frame of data and the setting range

is from 4 to 32.

10. Order

Press Order to select "LSB" or "MSB" and the default is MSB.

11. Display-related Setting

For more details, please refer to the introduction in "Display-related Setting"

of parallel decoding.

12. Event Table

The event table displays the decoded data, the corresponding line number and
time in table format. Press Evt.TableEventTable to select "ON" (

Note:

This operation is only available when MATHDecode1 / Decode2
Decode is set to "ON") to enter the event table interface.

Format: set "Data" display format in the event table to HEX, DEC or ASC.
Focus: press this key and turn

to browse the "Data" item.

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