Calibration Flash ROM Data Register

This register holds the data of the calibration flash ROM that is used for the calibration constants. The upper eight bits return “0” when this register is read. Note the bit pattern 01010 for bits 15-11 in the upper byte. A write to Flash ROM is aborted if this pattern is not present.

base + 1E16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Write*

0

1

0

1

0

1

0

1

D7

D6

D5

D4

D3

D2

D1

D0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Read**

0

0

0

0

0

0

0

0

D7

D6

D5

D4

D3

D2

D1

D0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Calibration Source Register

The E1564A 4-Channel Digitizer has an on-board calibration source. The source is a 12-bit DAC with a gain switch. Bit 15 is the gain switch and bits 11 through 0 are the calibration value.

base + 2016

15

 

14

13

12

11

10

9

8

7

6

 

5

4

3

2

 

1

0

Write

RANGE

 

 

MUX1

MUX0

 

 

 

 

 

DAC Data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*WRITE BITS (Calibration Source Register)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

bits 0-11

 

DAC

 

DAC data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

bit 12, 13

 

MUX0, 1

connects choices to the output; 00 = CAL source, 01 = Raw DAC output,

 

 

 

 

 

 

 

10 = Internal +5V reference, 11 = Input short

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

bit 15

 

RANGE

DAC output ranges: 0 = ±15V DAC output, 1 = ±0.5V DAC output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cache Count Register

The total number of samples taken by the digitizer is the ((cache count x 2) divided by the number of channels) + the sample count (registers at offset 1816 and 1A16).

base + 2216

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Write

0

0

0

0

0

0

0

0

 

 

 

Cache count

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

132 Register-Based Programming

Appendix B

Page 132
Image 132
Agilent Technologies E1564A, E1563A Calibration Flash ROM Data Register, Calibration Source Register, Cache Count Register

E1563A, E1564A specifications

Agilent Technologies, a prominent player in the field of electronic measurement, offers a range of products designed for various testing applications. Among their notable offerings are the E1564A and E1563A modules. Both models are designed for high-performance testing and measurement, catering particularly to the needs of engineers and technicians in the telecommunications and wireless industries.

The Agilent E1564A is a high-speed data and synchronization generation module, specifically tailored for advanced signal analysis. One of its primary features is its ability to provide a wide range of modulation types, including QPSK and 16QAM, which are essential for testing modern communication systems. The module also boasts a flexible output that supports multiple channels, making it efficient for testing complex systems where multiple data streams are present. Its exceptional performance in generating accurate waveforms enables engineers to perform thorough tests and validations on their devices.

On the other hand, the E1563A module is predominantly focused on protocol analysis and provides engineers with insights into the behavior of their communication systems. This module features comprehensive support for various communication protocols, making it invaluable when debugging and validating designs. Engineers can utilize the extensive measurement capabilities of the E1563A to analyze data integrity and system performance, ensuring that their products meet required specifications.

Both modules leverage advanced technologies from Agilent, ensuring high accuracy and reliability in measurements. They are equipped with powerful processing capabilities that allow for real-time data analysis, a critical aspect when working with high-frequency signals. Furthermore, these modules are designed for seamless integration into Agilent’s test and measurement platforms, enhancing usability and facilitating complex testing scenarios.

In summary, the Agilent E1564A and E1563A modules represent cutting-edge solutions for engineers involved in testing and validating communication systems. With their robust features, including support for various modulation schemes and protocol analysis, these modules enable efficient and accurate measurements. The commitment to quality and precision from Agilent Technologies continues to make these devices essential tools in the industry, helping engineers push the boundaries of innovation in telecommunications.