Rigol MSO/DS2000A Series Instrukcja Użytkownika Pobierz pdf (Strona 177)

Chapter 7 Digital Channel RIGOL

MSO2000A/DS2000A User’s Guide 7-7

 Press Format to set the display format of the digital bus to Hex, Decimal, Binary

or ASCII.

 Press Jitter Reject to turn on the jitter rejection function. Jitter refers to the

short-term deviation of the signal relative to its ideal time position at certain

time point, as shown as T1 and T2 in

Figure 7-1. When no reference clock is

selected for the bus, the jump status of each channel would cause the variation

of the bus data and undesired data would be generated due to jitter when the

bus data varies. When the jitter rejection is turned on, the bus does not display

the variation of the bus data caused by certain jitter time and still holds the

effective data.

 Press Jitter Time and use the multifunction knob or navigation knob to set

the jitter time and the range is from 1 ns to1 ms.

Note: Jitter rejection and jitter time can be set only when no reference clock is

selected.

Figure 7-1 Digital Bus Jitter

To Set the Label

Press LA  Label to set a user-defined label for specified digital channel.

 Use preset labels

Press Sel CH to select the digital channel (any channel of D0-D15) that needs to

set a label.

Press Preset and rotate to select a desired label. The available labels

include ACK, AD0, ADDR, BIT, CAS, CLK, DATA, HALT, INT, UB, LOAD, NMI, OUT,

PIN, RAS, RDY, RST, RX, TX and WR.

 Input a label manually

Press Sel CH to select the digital channel (any channel of D0-D15) that needs to

Signal

Ideal Clock

1 2 ... 172 173 174 175 176 177 178 179 180 181 182 ... 316 317

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Rigol MSO/DS2000A Series Instrukcja Użytkownika Strona 177