SX8722I070LF SEMTECH [Semtech Corporation], SX8722I070LF Datasheet - Page 82

• Manufacturer Part Number: SX8722I070LF
• Description: High gain acquisition for sensor interface
• Manufacturer: SEMTECH [Semtech Corporation]

14.2. Register description
The register descriptions are presented here in ascending order of Register Address. Some registers carry several individual
data fields of various sizes; from single-bit values (e.g. flags), upwards. Some data fields are spread across multiple
registers. Unused bits are 'don't care' and writing either 0 or 1 will not affect any function of the device. After power on reset
the registers will have the values indicated in the tables "Reset" column.
14.2.1. SX8722 general configuration
ACS - Revision 4.2
©2008 Semtech Corp.
ADVANCED COMMUNICATIONS & SENSING
7:4
7:4
Bit
Bit
Bit
7
6
5
4
3
2
1
0
3
2
1
0
3
2
1
EE_D
XTAL_D
CKOUT
RESERVED
EE
SLEEP
SHUT
CAL
reserved
AL1OnC
AL1OffC
AL2OnC
AL2OffC
reserved
CONF4
CONF3
CONF2
Bit Name
Bit name
Name
October 2008
r
r
rw
rw
r
rw
rw
r
r
rw
rw
rw
rw
r
rw
rw
rw
Mode
Mode
Mode
Table 60. SXCtrl1 (0x00)
Table 61. SXCtrl2 (0x01)
Reset
Reset
Reset
0
0
0
0
0
0
0
0
0
0
0
0
x
x
0
x
x
Page 82
Indicates if an EEPROM was detected at startup
Indicates if an XTAL was detected at startup
Enabled the clock output on CKOUT pin
Is set to 1 when SX8722 loaded its configuration from the
EEPROM at startup.
When set to 1 his bit activates the Sleep mode of the SX8722.
Setting pin SLEEP to 1 has the same effect.
When set to 1 his bit activates the Shutdown mode of the
SX8722. Setting pin SHUT to 1 has the same effect.
This flag shows if the SX8722 clock has been successfully
calibrated.
Sets the logical condition for alarm 1 on (0 = OR, 1 = AND)
Sets the logical condition for alarm 1 off (0 = OR, 1 = AND)
Sets the logical condition for alarm 2 on (0 = OR, 1 = AND)
Sets the logical condition for alarm 2 off (0 = OR, 1 = AND)
Configuration 4 enabling
Configuration 3 enabling
Configuration 2 enabling
High gain acquisition for sensor interface
Description
Description
Description
DATASHEET
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SX8722