Rtc (Real Time Clock); The Rtc Device "/Dev/Rtc1; The Rtc Backup Supercap; Watchdog - Eurotech DynaGate 10-12 Series User Manual

8 Interfaces in detail
8.14

RTC (Real Time Clock)

The DynaGATE 10-12 includes the following two RTC (Real Time Clocks) devices:
RTC device
/dev/rtc0
/dev/rtc1
8.14.1

The RTC device "/dev/rtc1"

The RTC device "/dev/rtc1" offers three timestamp registers.
8.14.2

The RTC backup supercap

The DynaGATE 10-12 includes a supercap in the Service Panel.
The RTC backup supercap can retain the time-stamp for at least 10 days when the DynaGATE 10-12 is
powered OFF.
8.15

Watchdog

The DynaGATE 10-12 includes a watchdog / supervisor IC, external to the CPU.
8.16

Accelerometer

Your DynaGATE 10-12 includes a 3-axis +/- 8g accelerometer with 12 bit resolution and a programmable
output signal which can trigger an interrupt to the CPU (movement detection).
8.17

The Programmable pushbutton

A programmable pushbutton is available in the Service Panel.
The pushbutton is sensed by a Linux daemon which executes a shell script every time the button is either
pushed or released.
8.18

TPM

The DynaGATE 10-12 includes a TPM 2.0 hw module (Infineon SLB9670).
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Description
Internal (in the CPU SoC)
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External (I2C-based RTC device)
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Default RTC used by Linux
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Accuracy: 25 minutes per year (at 25 °C)
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DynaGATE 10-12 User manual Rev. 0-14
Use
Reserved
Wake up the DynaGATE 10-12 from a deep low power
state