XE8000EV101 Semtech, XE8000EV101 Datasheet - Page 131

• Manufacturer Part Number: XE8000EV101
• Description: EVAL BOARD FOR XE8801AMI027LF
• Manufacturer: Semtech
• Type: MCUr

Specifications of XE8000EV101

• Contents: Fully Assembled Evaluation Board
• For Use With/related Products: XE88LC01AMI027
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Note 1: measured at 20°C.
Note 2: this timing is respected when the internal RC or crystal oscillator is enabled
Note 3: between 0°C and 60°C
To start the voltage level detection, the user sets bit VldEn. The measurement is started.
After 2ms, the bit VldValid is set to indicate that the measurement results are valid. From that time on, as long as
the VLD is enabled, a maskable interrupt request is sent if the voltage level falls below the threshold. One can also
poll the VLD and monitor the actual measurement result by reading the VldResult bit of the RegVldStat. This
result is only valid as long as the VldValid bit is ‘1’.
An interrupt is generated on each rising edge of VldResult.
© Semtech 2005
symbol
T
T
Vth
V
EOM
PW
thd
duration of measurement
voltage with temperature
Minimum pulse width
Variation of threshold
Threshold voltage
description
detected
Note 1
Table 19-4: Voltage level detector operation
min
2.60
2.50
2.38
2.24
2.10
2.00
1.95
1.90
19-3
not used
+/-150
typ
875
2.0
1350
max
3.20
3.00
2.83
2.69
2.56
2.45
2.34
2.23
2.5
ppm/°C
unit
ms
us
V
XE8801A – SX8801R
VldRange
trimming values:
0
1
1
1
1
1
1
1
1
comments
Note 2
Note 2
Note 3
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VldTune
000
001
010
011
100
101
110
111
xxx