Download User Manual - Hytec Electronics Ltd

Hytec Electronics Ltd
DAC8404/UTM/x/1.0
Date 11/07/07
CONTENTS
1.
FEATURES..........................................................................................................................................3
2.
PRODUCT SPECIFICATIONS ........................................................................................................3
3.
OPERATING MODES .......................................................................................................................4
3.1
3.2
USING REGISTERS TO UP DATE DACS ..................................................................................4
USING MEMORY TO UP DATE DACS .....................................................................................4
4.
MEMORY MAP..................................................................................................................................5
5.
APPLICATION REGISTERS ...........................................................................................................5
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
CONTROL & STATUS REGISTER (CSR)..........................................................................................6
MEMORY POINTER.........................................................................................................................7
NUMBER OF UPDATES 1.................................................................................................................7
CLOCK RATE..................................................................................................................................7
INTERRUPT VECTOR ......................................................................................................................7
FULL-SCALE TRIM & ID PAGE NO.................................................................................................8
NUMBER OF UPDATES 2.................................................................................................................8
DAC DATA REGISTERS .................................................................................................................9
DAC COMMAND REGISTERS .......................................................................................................10
6.
ID PROM ...........................................................................................................................................11
7.
CALIBRATION ................................................................................................................................12
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
BIPOLAR CALIBRATION FORMULA ..............................................................................................12
UNI-POLAR CALIBRATION FORMULA ..........................................................................................13
ID PAGE 1 (PG2 = 0, PG1 = 0, PG0 = 1) +/- 10V SCAN CALIBRATION VALUES LAYOUT...........14
ID PAGE 2 (PG2 = 0, PG1 = 1, PG0 = 0) +/- 10V SCAN CALIBRATION VALUES LAYOUT...........15
ID PAGE 3 (PG2 = 0, PG1 = 1, PG0 = 1) +/- 10V SCAN CALIBRATION VALUES LAYOUT...........16
ID PAGE 4 (PG2 = 1, PG1 = 0, PG0 = 1) +10V SCAN CALIBRATION VALUES LAYOUT. .............17
ID PAGE 5 (PG2 =1, PG1 = 1, PG0 = 0) +10V SCAN CALIBRATION VALUES LAYOUT...............17
ID PAGE 6 (PG2 = 1. PG1 = 1, PG0 = 1) +10V SCAN CALIBRATION VALUES LAYOUT. .............18
8.
SELECTION OF THE +/-12 VOLT POWER SUPPLY ...............................................................20
9.
I/O CONNECTOR – 50 WAY ON 8404 DAC BOARD.................................................................21
10.
HYTEC TRANSITION CARD 8204 CONNECTIONS ............................................................22
11.
APPENDIX A: PSEUDO CODE EXAMPLES ..........................................................................23
11.1
11.2
DAC UPDATE BY REGISTER.........................................................................................................23
UPDATE DAC FROM WAVEFORM MEMORY DATA .....................................................................23
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