User`s manual

- Downloading Data Directly into the DAC . . . . . . . . . . . . . Page 269
• Using the Front Panel’s “Digital Port In”
Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 272
- “Digital Port In” Connector Pinout. . . . . . . . . . . . . . . . . . . Page 278
- Using the “Digital Port In” Connector to Select
a Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 279
- Using the “Digital Port In” Connector to Download
Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 279
• High Speed Program Comments . . . . . . . . . . . . . . . . . . . . . . Page 280
- Amplitude Effects on DAC Codes . . . . . . . . . . . . . . . . . . . Page 280
- Incorrect AFG Operation from Incorrect DAC
Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 280
- DAC Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 280
- Download Sources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 280
- Determining the Size of the Combined Segment
List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 280
- Determining the Size of the Combined Segment
Sequence List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 280
Data Transfer Methods and Speed Comparisons
Table 7-1 shows the timing relationship of the different data transfer
methods used. The table lists the relative timing in descending order with
the slowest method on top.
Table 7-1. Speed Relationships of Data Transfer Methods
Method Command
Approximate
Time Savings*
Segment Voltage List [SOURce:]LIST[1][:SEGMent]:VOLTage 0
Segment DAC Code List [SOURce:]LIST[1][:SEGMent]:VOLTage:DAC 35%
Segment Combined List [SOURce:]LIST[1][:SEGMent]:COMBined 35%
Segment DAC Codes as Block Data [SOURce:]LIST[1][:SEGMent]:VOLTage:DAC 88%
Segment Combined List as Block Data [SOURce:]LIST[1][:SEGMent]:COMBined 94%
Segment/Sequence Combined List as
Block Data
[SOURce:]LIST[1][:SEGMent]:COMBined/
[SOURce:]LIST[1]:SSEQuence:COMBined
94%
*The time saving percentages are referenced to the speed of the Segment Voltage List method
224 High Speed Operation Chapter 7