AS8506 datasheet(69/89 Pages) AMSCO

69 / 89 page

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

AS8506 – 69

Devic e I n te r f ac e

Figure 83:

Lower Limit DAC Code MSB Register

Figure 84:

Device Address and Broadcast Command SPI Operation Register

Address

Features and Bit Description

SPI4

SPI3

POR

Value

0x24

llmt_dcod_msb_reg

Most Significant byte of 12-bit DAC

code for setting low limit voltage.

R/W

0000_0000

POR_VSUP

D3:D0

Bit11 to Bit8 of DAC

code

D7:D4

Reserved

Address

Features and Bit Description

SPI4

SPI3

POR

Value

0x25

spop_dadd_bcmd

_reg

Device address/ broadcast command

R/W

0000_0000

POR_V5V

D5:D0

If spi3_cmd_reg [D3-D1] =

001/010

Address of Device to be

accessed.

(000000 address is broadcast

address)

If spi3_cmd_reg [D3-D1] =

100

Broadcast communication

commands.

000000

→ No operation

000001

→ Timer control

000010

→ Cell reference DAC

code write

000011 Cell lower limit DAC

code write

000100

→ Cell higher limit

DAC code write

If spi3_cmd_reg [D3-D1] =

101

000000

→ Data of register

wrop_data_reg is written to

address stored in

spop_reg_add_reg in all

devices.

D7:D6

Reserved

(accessible only in Master

mode)

AS8506 Datasheet(PDF) 69 Page - ams AG

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