ADIS16223CMLZ データシートの表示（PDF） - Analog Devices

部品番号

コンポーネント説明

一致するリスト

ADIS16223CMLZ

Digital Tri-Axial Vibration Sensor

Analog Devices 

Data Sheet

ADIS16223

CAPTURE/ALARM CONFIGURATION

Table 14 provides a list of the control registers for the user

MANUAL MODE

configuration of the capture function. The address column in

Table 14 represents the lower byte address for each register.

Table 16 provides an example configuration sequence for manual

mode. When using the factory default configuration, the first

Table 14. Capture Configuration Register Summary

step in this example is unnecessary. Use the manual trigger to

Register

Lower Byte

start the data capture process.

Name

Address

Description

Table 16. Manual Mode Configuration Example

CAPT_CTRL 0x1C

Capture configuration

DIN

Description

CAPT_PRD 0x1E

Capture period (automatic mode)

ALM_MAGX 0x20

X-axis alarm threshold (event mode)

0x9C00 Set CAPT_CTRL[7:0] = 0x00 to select manual mode

ALM_MAGY

ALM_MAGZ

ALM_S_MAG

ALM_CTRL

DIO_CTRL

E GLOB_CMD

0x22

0x24

0x26

0x28

0x36

0x3E

Y-axis alarm threshold (event mode)

Z-axis alarm threshold (event mode)

System alarm

Alarm control (event)

Digital I/O configuration

Capture commands

The CAPT_CTRL register in Table 15 provides the primary user

control for capture mode configuration. It provides four different

T modes of capture: manual, automatic, event, and extended.

Configure the mode by writing to the CAPT_CTRL register,

then use either GLOB_CMD[11] (see Table 27) or one of the

E digital I/O lines (DIO1 or DIO2) as a manual trigger to start

operation. Use the DIO_CTRL register in Table 28 to configure

either DIO1 or DIO2 as a manual trigger input line. The manual

trigger can also stop a capture event that is processing and

L return the device to an idle state.

Table 15. CAPT_CTRL Bit Descriptions

Bits Description (Default = 0x0020)

O [15:10] Reserved

[9:8] Extended mode channel selection

00 = x-axis

01 = y-axis

S 10 = z-axis

11 = reserved

[7]

Band-pass filter, 1 = enabled

[6]

Automatically store capture buffers to flash upon alarm

B trigger, 1 = enabled

[5:4] Pre-event capture length for event mode

00 = 64 samples

O 01 = 128 samples

0xBF08 Set GLOB_CMD[11] = 1 to start the data capture

AUTOMATIC MODE

Table 18 provides a configuration example for automatic mode,

where the manual trigger results in a data capture and then begins a

countdown sequence to start another data capture. This example

also uses the option for shutting down the device to save power

after the data capture completes. The CAPT_PRD register in

Table 17 provides users with the ability to establish the countdown

time in automatic mode.

Table 17. CAPT_PRD Register Bit Descriptions

Bits Description (Default = 0x0000)

[15:10] Reserved

[9:8] Scale for data bits

00 = 1 second/LSB

01 = 1 minute/LSB

10 = 1 hour/LSB

[7:0] Data bits, binary format

Table 18. Automatic Mode Configuration Example

DIN

Description

0x9F02 Set CAPT_PRD[15:8] = 0x02 to set time scale to hours

0x9E18 Set CAPT_PRD[7:0] = 0x18 to set the period to 24 hours

0x9C06 Set CAPT_CTRL[7:0] = 0x06 to select automatic trigger

mode and enable shutdown in between captures

0xBF08 Set GLOB_CMD[11] = 1 to execute a capture, shut down,

and begin the 24-hour countdown for the next capture

10 = 256 samples

11 = 512 samples

[3:2] Capture mode

00 = manual

01 = automatic

10 = event

11 = extended

[1]

Power-down between capture events, 1 = enabled

[0]

Reserved

Rev. A | Page 11 of 20

Share Link: