AS8506 datasheet(47/89 Pages) AMSCO

47 / 89 page

ams Datasheet, Confidential:2013-Sep [1-00]

AS8506 – 47

Devic e I n te r f ac e

Example:

To set the external temperature thresholds to 4.15V, initiate a

broadcast command as given in the below sequence.

Figure 40:

External Temperature Threshold Setting through Broadcast Command to Slaves

Communication with Individual Slave

Communication with an individual slave is done as SPI write or

read.

Write operation.

To perform the write operation to one of the slave device,

corresponding data should be written in these registers

spop_dadd_bcmd_reg, spop_reg_add_reg, wrop_data_reg

and spi3_cmd_reg.

Example:

To set the external temperature threshold of the slave device

address 0x06 to 4.15V, initiate a broadcast command as given

in the below sequence.

Figure 41:

Write Operation to the Individual Slave

Command

Address

Data

To set the external temperature threshold

tflg_tshld_setg_reg

0x1D

0xFF

Address of the register to broadcast

spop_reg_add_reg

0x26

0x1D

Broadcast communication command

spi3_cmd_reg

0x28

0x0B

Command

Address

Data

Slave device address

spop_dadd_bcmd_reg

0x25

0x06

Address of the slave register

spop_reg_add_reg

0x26

0x1D

To set the external temperature threshold

wrop_data_reg

0x27

0xFF

Slave write command

spi3_cmd_reg

0x28

0x05

AS8506 Datasheet(PDF) 47 Page - ams AG

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