Datasheet

Deviceinanyoperationmode
Programalarmthresholds?
Programanothergroupoffourchannels?
Endofalarmprograming
Yes
Yes
No
No
No
Yes
CS
CS
Entryintoalarm
register
programming
sequence
CS
Alarmregister
programming
sequence
SDI:DI15..12=11XX
(xxindicatesgroupoffourchannels;refertable8)
Deviceentersalarmregisterprogrammingsequence
SDI:DI15..0aspertable8(programalarmthresholds)
DI12=1?
ADS7950, ADS7951, ADS7952, ADS7953
ADS7954, ADS7955, ADS7956, ADS7957
ADS7958, ADS7959, ADS7960, ADS7961
SLAS605A –JUNE 2008–REVISED JANUARY 2010 www.ti.com
NOTE: The device continues its operation in selected mode during programming. SDO is valid, however it is not possible to
change the range or write GPIO data into the device during programming.
Figure 55. Alarm Program Register Programming Flowchart
Table 9. Alarm Program Register Settings
DESCRIPTION
BITS RESET STATE
LOGIC
FUNCTION
STATE
FRAME 1
DI15-12 NA 1100 Device enters ‘alarm programming sequence’ for group 0
1101 Device enters ‘alarm programming sequence’ for group 1
1110 Device enters ‘alarm programming sequence’ for group 2
1111 Device enters ‘alarm programming sequence’ for group 3
Note: DI15-12 = 11bb is the alarm programming request for group bb. Here ‘bb’ represents the alarm programming group number in binary
format.
DI11-14 NA Do not care
FRAME 2 AND ONWARDS
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Product Folder Link(s): ADS7950, ADS7951, ADS7952, ADS7953 ADS7954, ADS7955, ADS7956, ADS7957 ADS7958,
ADS7959, ADS7960, ADS7961