DVK90129 Melexis Inc, DVK90129 Datasheet - Page 44

• Manufacturer Part Number: DVK90129
• Description: DEVELOPMENT KIT MLX90129
• Manufacturer: Melexis Inc
• Series: -r
• Type: Development kitr

Specifications of DVK90129

• Contents: Board, Proxima RF™ Desktop Reader
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: MLX90129

9.2.3 Sensor specific configuration
The following registers configure the sensor acquisition chain. This configuration is sensor specific.
Sensor control word (EEPROM & Register, address #15. EEPROM only, addresses #1B, #21)
Sensor thresholds (EEPROM & Register, addresses #16 and #17. EEPROM only #1C, #1D and #22, #23)
3901090129
Rev 007
Bits
#15 - Sensor control word
15:14
13:12
11
10
9
8
7
6
5
4
3:2
1:0
#1B - Sensor 1 control word
15:0
#21 - Sensor 2 control word
15:0
Bits
#16 - Sensor 0 low threshold
15:0
Name
ADC_Mode
Sensor0_InitTime
Sensor0_Irq_Above
Sensor0_Irq_Betwn
Sensor0_Irq_Below
ADC_LowPower
ADC_DataLogAbove
ADC_DataLogBetwn
ADC_DataLogBelow
ADC_Proc_Ctrl
Same as above
Same as above
Name
Sensor0_ThresLow
Description
ADC mode
00: higher speed, but lower accuracy
01, 10: intermediate modes
11: lower speed, but higher accuracy
Sensor initialization time
00: 330µs
01: 2.9ms
10: 17ms
11: 128ms
Reserved (00)
Interrupt conditions control
- generate an interrupt when the last sample is above the programmed
high threshold
- generate an interrupt when the last sample is between the programmed
high and low thresholds
- generate an interrupt when the last calculated sample is below the
programmed low threshold
Low power mode. Enable the low power mode of the ADC.
Data logging control
- store the calculated samples* above the high threshold
- store the calculated samples* between the high and low thresholds
- store the calculated samples* below the low threshold
* ADC value compared without prefix
Reserved (00)
Samples processing control
Defines the rules for the calculation of the value which will be stored in the
ADC buffer
00 - single sample
01 - average of 2 samples
10 - average of 8 samples
11 - average of 32 samples
Same as above
Same as above
Description
Sensor 0 low threshold word
13.56MHZ SENSOR TAG / DATALOGGER IC
(when =1)
Page 44 of 56
(= default initialization time for the internal sensor)
MLX90129
Data Sheet
March 2011