Sun Microsystems EDT S16A 用户手册

S16A User’s Guide

Registers

EDT, Inc.  October, 1996

31

The Analog Input Module contains 11 internal registers, described in the following sections, that control the
analog input and other settings. These registers are accessed using the two UART registers described in the
section Analog Input Module UART Registers beginning on page 34.

0

OUT0_ENABLE

Enables I/O channel 0 output

1

OUT0_20BIT

When set, configures I/O channel 0 as 20-bit digital-to-analog; when clear,
the channel is in 16-bit mode.

4

OUT1_ENABLE

Enables I/O channel 1 output

5

OUT1_20BIT

When set, configures I/O channel 1 as 20-bit digital-to-analog; when clear,
the channel is in 16-bit mode.

Input Clock Prescale 0 In

Provides a divisor from the base 192 KHz clock for input channel 0.

Input Clock Prescale 1 In

Provides a divisor from the base 192 KHz clock for input channel 1.

Input Configuration 0 In

Controls the input source and the gain for input channel 0.

Input Configuration 1 In

Controls the input source and the gain for input channel 1.

Trim Output Offset 0

Controls the output voltage offset adjustment for output channel 0.

Trim Output Offset 1

Controls the output voltage offset adjustment for output channel 1.

Trim Input Gain 0

Controls the input gain adjustment for input channel 0.

Trim Input Offset 0

Controls the input level offset adjustment for input channel 0.

Trim Input Gain 1

Controls the input gain adjustment for input channel 1.

Trim Input Offset 1

Controls the input level offset adjustment for input channel 1.

Temperature

Two-byte register containing a 12-bit temperature reading for calibrating the
S16A for different operating temperatures.