Data Sheet

AD7380/AD7381

Rev. 0 | Page 29 of 31

CONFIGURATION2 REGISTER

Address: 0x2, Reset: 0x0000, Name: CONFIGURATION2

Table 17. Bit Descriptions for CONFIGURATION2

Bits

Bit Name

Description

Reset

Access

[15:12]

ADDRESSING

Addressing. Bits[15:12] define the address of the relevant register. See the Addressing Registers

section for further details.

0x0

R/W

[11:9]

RESERVED

Reserved.

0x0

R

8

SDO

SDO. Conversion results serial data output.

0x0

R/W

0: two wire, conversion data are output on both SDOA and SDOB.

1: one wire, conversion data are output on SDOA only.

[7:0]

RESET

Reset.

0x0

R/W

Set to 0x3C to perform a soft reset, which refreshes some blocks, and register contents remain

unchanged. Clears ALERT register and flushes any oversampling stored variables or active

state machine.

Set to 0xFF to perform a hard reset, which resets all possible blocks in the device. Register

contents are set to defaults. All other values are ignored.

ALERT REGISTER

Address: 0x3, Reset: 0x0000, Name: ALERT

Table 18. Bit Descriptions for ALERT

Bits

Bit Name

Description

Reset

Access

[15:12]

ADDRESSING

Addressing. Bits[15:12] define the address of the relevant register. See the Addressing Registers

section for further details.

0x0

R

[11:10]

RESERVED

Reserved.

0x0

R

9

CRCW_F

CRC Error. Indicates that a register write command failed due to a CRC error. This fault bit is

sticky and remains set until the register is read.

0x0

R

0: no CRC error.

1: CRC error.

8

SETUP_F

Load Error. The SETUP_F indicates that the device configuration data did not load correctly on

startup. This bit does not clear on an ALERT register read. A hard reset via the

CONFIGURATION2 register is required to clear this bit and restart the device setup again.

0x0

R

0: no setup error.

1: setup error.

[7:6]

RESERVED

Reserved.

0x0

R

5

AL_B_HIGH

Alert B High. The alert indication high bits indicate if a conversion result for the respective

input channel exceeds the value set in the ALERT_HIGH_THRESHOLD register. This fault bit is

sticky and remains set until the register is read.

0x0

R

1: alert indication.

0: no alert indication.

4

AL_B_LOW

Alert B Low. The alert indication low bits indicate if a conversion result for the respective input

channel exceeds the value set in the ALERT_LOW_THRESHOLD register. This fault bit is sticky

and remains set until the register is read.

0x0

R

1: alert indication.

0: no alert indication.

[3:2]

RESERVED

Reserved.

0x0

R