Kontron nanoETXexpress, Руководство пользователя

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6 5BConnector and feature description
Kontron User's Guide
nanoETXexpress Evaluation Board
27
6.12 Kontron Feature Connector (J37)
The Feature Connector J37 is a Kontron standard connection for easy communication with external
devices for example SM Bus communication with Kontron M.A.R.S. Smart Battery System. See the
detailed description of available functions below:
Feature Connector Pin out
Pin Signal Description
1 PWR_+5V 5V power +5V UL-protected with inductor (600R@100MHz, 1A)
2 GPO2 3.3V-O General-purpose power management event output
3 #BATLOW 3.3V-I
Battery low input. May be driven low by external circuitry to signal that the system
battery is low, or may be used to signal some other external power management event.
4 GPI2 3.3V-I General-purpose power management event input
5 #SYS_RESET 3.3V-I
This input may be driven low by external circuitry in order to reset the power
management logic
6 WDT 3.3V-O Indicating that a Watchdog Timeout Event has occurred
7 LPC_SERIRQ 3.3V-I Serial interrupt request. This pin is used to support the serial interrupt protocol.
8 - - Not connected
9 I2C_DAT 3.3V-IO Data line of I2C-Bus
10 #SMB_ALERT 3.3V-I
System Management Bus Alert input. May be driven low by SMB devices in order to
signal an event on the SM Bus
11 I2C_CLK 3.3V-O Clock line of I2C-Bus
12 SMB_DAT 3.3V-IO
Clock and data line of SM-Bus.
13 SMB_CLK 3.3V-O
14 - - Not connected
15 #WAKE1 3.3V-I Low driven general purpose wake-up signal
16 VCC_RTC 3V-I
3V backup cell input. Should be connected to a 3V backup cell for RTC operation and
storage register non-volatility in the absence of system power. (VBATT = 2.4 – 3.3V)
17 #THRM 3.3V-I Input from off-module temperature sensor indicating an over temperature situation
18 GND GND Ground
19 PWR_OK 3.3V-I
High active input indicating that power from the power supply is ready. It can also be
used as low active reset input signal.