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Clocking
Intel® Quark™ SE Microcontroller C1000
June 2017
Platform Design Guide
Document Number: 334715-004EN
41
Table 22. 32Khz Crystal Oscillator specification
Symbol
Parameter
Min
Typ
Max
Unit
Fo
Crystal frequency
32,768
Hz
Cesr
Crystal ESR
50
80
KΩ
Cm
Crystal Motional Cap
3.7
pF
Co
Crystal Shunt Cap
1.2
pF
CL
Crystal Load Cap
7
pF
Ftol
Frequency Tolerance
-20
20
ppm
Dlev
Drive Level
1
uW
8.2
Features
The following is a list of the RTC features:
Programmable 32-bit binary counter
Counter increments on successive edges of a Counter Clock from 1 Hz to
32.768 kHz (derived from the 32.768 kHz Crystal Oscillator clock)
Comparator for Interrupt/Wake Event generation based on the programmed
Match Value
Support for Interrupt/Wake Event generation when only the Counter Clock is
running (Fabric Clock is off)
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