Power Management - Advantech SOM-2569 User Manual

1.3.8.13 TPM
Supports TPM 2.0 module by default.
1.3.8.14 Serial port
Watchdog Timer
Supports multi-level watchdog time-out output. Provides 1-65535 levels, from 100ms
to 109.22 minutes intervals.
Serial port
2 ports 4-wire HSUART signal interface using RTS/CTS control only:
Programmable FIFO enable/disable

64B iDMA FIFO per channel with up to 32B burst capability

Even, odd, or no parity bit selectable

1, 1.5, or 2 stop bit selectable

BIOS
BIOS chip is on module by default. Also allows the user to place BIOS chip on carrier
board with appropriate design and a pull-down to GND on BIOS_DISABLE# pin.
Note! If system COMS is cleared, we strongly suggest to go to the BIOS setup
menu and load the default settings at the first time of boot up.
1.3.9

Power Management

1.3.9.1 Power Supply
Supports both ATX and AT power modes. VSB is for suspend power and can be
option if not require standby (suspend-to-RAM) support. RTC Battery may be option
if keep time/date is not require.
VCC: 5V +/- 5%

VSB: 5V +/- 5% (Suspend power)

RTC Battery Power: 2.0V - 3.3V

1.3.9.2 Power Sequence
According to SMARC 2.0/SMARC 2.1 specifications
1.3.9.3 Wake Event
Various wake-up events for different scenarios.
Wake-on-LAN(WOL): Wake to S0 from S3/S4/S5.
USB Wake: Wake to S0 from S3/S4.
PCIe Device Wake: depends on user inquiry and may need customized BIOS.
1.3.9.4 Advantech S5 ECO Mode (Deep Sleep Mode)
Advantech iManager provides additional features for allowing the system to enter a
suspended low power mode – S5 ECO mode. In this mode, the module will cut all
power including suspend/active power to the chipset and keep an on-module control-
ler active. In this mode, only <50mW of power will be consumed increasing battery
life. While this mode is enabled in BIOS, the system (or module) will only boot using
the power button in-place of other methods such as WOL.
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