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ADS8671 Datasheet(PDF) 53 Page - Texas Instruments

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Part No. ADS8671
Description  14-Bit, High-Speed, Single-Supply, SAR ADC Data Acquisition System with Programmable, Bipolar Input Ranges
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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ADS8671 Datasheet(HTML) 53 Page - Texas Instruments

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ADS8671, ADS8675
www.ti.com
SBAS779 – DECEMBER 2016
Product Folder Links: ADS8671 ADS8675
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Copyright © 2016, Texas Instruments Incorporated
7.6.1.7 ALARM_REG Register (address = 20h)
This register contains the output alarm flags (active and tripped) for the input and AVDD alarm.
Figure 87. ALARM_REG Register
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Reserved
R-0000h
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ACTIVE_
VDD_L_
FLAG
ACTIVE_
VDD_H_
FLAG
Reserved
ACTIVE_
IN_L_
FLAG
ACTIVE_
IN_H_
FLAG
Reserved
TRP_
VDD_L_
FLAG
TRP_
VDD_H_
FLAG
TRP_IN_
L_FLAG
TRP_IN_
H_FLAG
Reserved
OVW_
ALARM
R-0b
R-0b
R-00b
R-0b
R-0b
R-00b
R-0b
R-0b
R-0b
R-0b
R-000b
R-0b
LEGEND: R = Read only; -n = value after reset; -0, -1 = Condition after application reset; -<0>, -<1> = Condition after power-on reset
Address for bits 7-0 = 20h
Address for bits 15-8 = 21h
Address for bits 23-16 = 22h
Address for bits 31-24 = 23h
Table 17. ALARM_REG Register Field Descriptions
Bit
Field
Type
Reset
Description
31-16
Reserved
R
0000h
Reserved. Reads return 0000h.
15
ACTIVE_VDD_L_FLAG
R
0b
Active ALARM output flag for low AVDD voltage.
0b = No ALARM condition
1b = ALARM condition exists
14
ACTIVE_VDD_H_FLAG
R
0b
Active ALARM output flag for high AVDD voltage.
0b = No ALARM condition
1b = ALARM condition exists
13-12
Reserved
R
00b
Reserved. Reads return 00b.
11
ACTIVE_IN_L_FLAG
R
0b
Active ALARM output flag for high input voltage.
0b = No ALARM condition
1b = ALARM condition exists
10
ACTIVE_IN_H_FLAG
R
0b
Active ALARM output flag for low input voltage.
0b = No ALARM condition
1b = ALARM condition exists
9-8
Reserved
R
00b
Reserved. Reads return 00b.
7
TRP_VDD_L_FLAG
R
0b
Tripped ALARM output flag for low AVDD voltage.
0b = No ALARM condition
1b = ALARM condition exists
6
TRP_VDD_H_FLAG
R
0b
Tripped ALARM output flag for high AVDD voltage.
0b = No ALARM condition
1b = ALARM condition exists
5
TRP_IN_L_FLAG
R
0b
Tripped ALARM output flag for high input voltage.
0b = No ALARM condition
1b = ALARM condition exists
4
TRP_IN_H_FLAG
R
0b
Tripped ALARM output flag for low input voltage.
0b = No ALARM condition
1b = ALARM condition exists
3-1
Reserved
R
000b
Reserved. Reads return 000b.
0
OVW_ALARM
R
0b
Logical OR outputs all tripped ALARM flags.
0b = No ALARM condition
1b = ALARM condition exists


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