ADS8699IPWR datasheet(48/74 Pages) TI2

48 / 74 page

7.6 Register Maps

7.6.1 Device Configuration and Register Maps

The device features nine configuration registers, mapped as described in Table 7-10. Each configuration

registers is comprised of four registers, each containing a data byte.

Table 7-10. Configuration Registers Mapping

ADDRESS

00h

DEVICE_ID_REG

Device ID register

04h

RST_PWRCTL_REG

Reset and power control register

08h

SDI_CTL_REG

SDI data input control register

0Ch

SDO_CTL_REG

SDO-x data input control register

10h

DATAOUT_CTL_REG

Output data control register

14h

RANGE_SEL_REG

Input range selection control register

20h

ALARM_REG

ALARM output register

24h

ALARM_H_TH_REG

ALARM high threshold and hysteresis register

28h

ALARM_L_TH_REG

ALARM low threshold register

7.6.1.1 DEVICE_ID_REG Register (address = 00h)

This register contains the unique identification numbers associated to a device that is used in a daisy-chain

configuration involving multiple devices.

Figure 7-17. DEVICE_ID_REG Register

Reserved

DEVICE_ADDR[3:0]

R-00h

R-0000b

R/W-0000b

Reserved

R-0000h

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset; -0, -1 = Condition after application reset;

LEGEND: -<0>, -<1> = Condition after power-on reset

Address for bits 7-0 = 00h

Address for bits 15-8 = 01h

Address for bits 23-16 = 02h

Address for bits 31-24 = 03h

Table 7-11. DEVICE_ID_REG Register Field Descriptions

Bit

Field

Type

Reset

Description

31-24

Reserved

00h

Reserved. Reads return 00h.

23-20

Reserved

0000b

Reserved. Reads return 0000b.

19-16

DEVICE_ADDR[3:0](1)

R/W

0000b

These bits can be used to identify up to 16 different devices in a

system.

15-0

Reserved

0000h

Reserved. Reads return 0000h.

(1)

These bits are useful in daisy-chain mode.

ADS8691, ADS8695, ADS8699

SBAS777B – DECEMBER 2016 – REVISED MARCH 2021

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ADS8699IPWR Datasheet(PDF) 48 Page - Texas Instruments

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