Advantech PCM-9588 user manual SMBus, Read a word

4.3.4.6SMBus

When the application has executed, you can click the radio button to choose to test each access mode, i.e. Access a byte, Access multiple bytes and Access a word. All data must be read or written in hexadecimal except the numbers for radio button: Access multiple bytes mode must be written in decimal. You can test the functional- ities of the watchdog as follows:

!Read a byte

–Click the radio button- Access a byte.

–Key in the slave device address in the Slave address field.

–Key in the register offset in the Register Offset field.

–Click the READ SMBus DATA button and a byte of data from the device will be shown on the Result field.

!Write a byte

–Click the radio button- Access a byte.

–Key in the slave device address in Slave address field.

–Key in the register offset in Register Offset field.

–Key the desired data in the Result field to write to the device.

–Click the WRITE SMBus DATA button and then the data will be written to the device through SMBus.

!Read a word

–Click the radio button- Access a word.

–Key in the slave device address in the Slave address field.

–Key in the register offset in the Register Offset field.

–Click the READ SMBus DATA button and then a word of data from the device will be shown on the Result field.

Chapter 4 S/W Introduction & Installation

45 PCM-9588 User Manual