Measurement-computing PCM-DAC02 Uživatelský manuál stáhnout pdf (Strana 13)

WRITE: Same as base + 0 but for second DAC, DAC1.

READ: No function

D/A0D/A1D/A2D/A3D/A4D/A5D/A6D/A7

01234567

BASE + 3 - DAC1 MSB (4 bits)

WRITE: Same as base + 1 but for second DAC, DAC1. Updates DAC1.

READ: No function

D/A8D/A9D/A10D/A11XXXX

01234567

BASE + 4 - Digital I/O (8 bits)

WRITE: Updates output of DIO bits set for output.

READ: Reads current status of DIO bits set for input. Reads back output state of

DIO bits set for output.

DIO0DIO1DIO2DIO3DIO4DIO5DIO6DIO7

01234567

BASE + 5 - Calibration Data Load Register

WRITE: Load bit for calibration DAC, which is serial load.

READ: Writes contents of DATA into the DAC8800.

DATAXXXXXXX

01234567

For a complete technical description of the calibration procedure please fax your

request to Measurement Computing Corp., attention of the Engineering Manager. The

details of this procedure are available to any software developer desiring to add a

calibration routine for the PCM-DAC02.

BASE + 6 - Control & Status Register

WRITE: Loads various control bits, explained below.

DAC1R0DAC1R1DAC0R0DAC0R1LDIRUDIRINT_ENX

01234567

READ: Reads status of various control bits, explained below.

DAC1R0DAC1R1DAC0R0DAC0R1LDIOUDIOINT_ENEXT_INT

01234567

Set DAC Output Range DAC#R1 DAC#R0

±5V 0 0

±10V 0 1

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 19 20

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Measurement-computing PCM-DAC02 Uživatelský manuál Strana 13