XE8000EV120 Semtech, XE8000EV120 Datasheet - Page 45

• Manufacturer Part Number: XE8000EV120
• Description: BOARD EVAL FOR SX8722I070TRLF
• Manufacturer: Semtech
• Series: ZoomingADC™r

Specifications of XE8000EV120

• Number Of Adc's: 1
• Number Of Bits: 16
• Data Interface: I²C
• Inputs Per Adc: 7 Single or 4 Differential
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 125°C
• Utilized Ic / Part: SX8722
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: XM8000EV120; XM8000EV120

11.5.3. SXCtrl2 - SX8722 Control register 2
This register is common to all configurations; it sets the relationship between the different alarm sources.
When set to 1 the condition is AND and when set to 0 the condition is OR.
The diagram below shows the interaction between alarms sources.
The flowchart below shows the management of the alarms flag (when at least one alarm is on).
ACS - Revision 4.2
©2008 Semtech Corp.
ADVANCED COMMUNICATIONS & SENSING
Register
SXCtrl2
Configuration 1 Alarm1 off threshold reached ?
Configuration 2 Alarm1 off threshold reached ?
Configuration 3 Alarm1 off threshold reached ?
Configuration 4 Alarm1 off threshold reached ?
Configuration 1 Alarm1 on threshold reached ?
Configuration 2 Alarm1 on threshold reached ?
Configuration 3 Alarm1 on threshold reached ?
Configuration 4 Alarm1 on threshold reached ?
reserved
7
Table 32. Alarm sources in Control register 2; address 0x02
reserved
October 2008
6
Alarm Mgmt End
Alarm1 on flag
Alarm Mgmt
Alarm1 off flag
Figure 24. Alarms sources interaction
set ?
Figure 25. Alarms flag managment
set ?
reserved
5
Page 45
reserved
4
Set Alarm 1 pin to « 1 »
Set Alarm 1 pin to « 0 »
High gain acquisition for sensor interface
AL1OnC
3
A l1OffC
Al1OnC
AL1OffC
2
Alarm1 on flag set
Alarm1 off flag set
AL2OnC
1
DATASHEET
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SX8722
AL2OffC
0