AS8506 datasheet(71/89 Pages) AMSCO

71 / 89 page

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

AS8506 – 71

Devic e I n te r f ac e

Figure 87:

SPI3 Command Register

Figure 88:

SPI Read Operation Data Register

Address

Features and Bit Description

SPI4

SPI3

POR

Value

0x28

spi3_cmd_reg

3-wire SPI command register. Register is

cleared once the SPI3 transaction is

done.

R/W

0000_0000

POR_V5V

→ No SPI3 operation

→ Start SPI3 operation

corresponding to

command code

D3:D1

000

→ Reserved

001

→ Slave register Read

010

→ Slave register Write

011

→ Start address

allocation process

100

→ Broadcast

configuration command

101

→ Broadcast Slave

110

→ Reserved

111

→ Reserved

D7:D4

Reserved

Address

Features and Bit Description

SPI4

SPI3

POR

Value

0x29

rdop_data_reg

Read data from the register

addressed by spop_reg_add_reg of

device selected in

spop_dadd_bcmd_reg during SPI3

read operation.

R/W

0000_0000

POR_VSUP

D7:D0

Bit7 to Bit0 of accessed

(accessible only in

Master mode)

AS8506 Datasheet(PDF) 71 Page - ams AG

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