ASC7531A Просмотр технического описания (PDF) - Unspecified

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Компоненты Описание

производитель

ASC7531A

LOW-VOLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR AND VOLTAGE MONITOR

Unspecified 

aSC7531A / aSC7531B

GetVolt5V()

Returns the voltage attached to the 5 volt pin.

Write Data Length:

Read Data Length:

Command Code:

0x01

0x02

0x11

GetVolt3p3V()

Returns the voltage attached to the 3.3 volt pin.

Write Data Length:

Read Data Length:

Command Code:

0x01

0x02

0x12

GetVolt2p5V()

Returns the voltage attached to the 2.5 volt pin.

Write Data Length:

Read Data Length:

Command Code:

0x01

0x02

0x13

GetVoltVccp()

Returns the voltage attached to the VCCP pin.

Write Data Length:

Read Data Length:

Command Code:

0x01

0x02

0x14

GetAllVoltages()

Returns a block of 10-bytes of data containing all 5 voltages in the following order 12V, 5V, 3.3V, 2.5V, and VCCP

Write Data Length:

0x01

Read Data Length:

0x0A

Command Code:

0x10

Optional SST Device Commands

The optional SST commands Alert(), Suspend() are not supported in the aSC7531.

Vendor Specific Extensions

The vendor specific command codes are in the range from 0xE0 and 0xE7. Reading and writing to specific internal registers is

provided for custom tuning of sensor response characteristics.

WriteReg()

Writes to the sensor’s internal registers.

Write Data Length:

Read Data Length:

Command Code:

2+N (command + address + Number of bytes to write)

0x00

0xE0

Example bus transaction to write to a sensor located at address 0x48. This example writes 2 consecutive locations (0x20 and 0x21)

to values 0x25 and 0x28.

8

Target Address

0x48

© Andigilog, Inc. 2006

8

Write Length

0x04

8

8

Read Length

Command

0x00

0xE0

-9-

www.andigilog.com

December 2006 - 70A05012

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