Kontron COMe Eval Carrier QorIQ - Manual (Page 33)

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Quick Start Guide
COME-QEC-1
7 Switches
7.1 DIP Switch SW3
The COME-QEC-1 is equipped with one 4-bit DIP switch, SW3, used for carrier configuration. The following table indicates the
functions of the switches integrated in the DIP switch SW3.
7.2 Other Switches
7.2.1 Reset Switch (Push Button Switch SW1)
The push button switch SW1 is used to generate the SYS_RESET# signal on the COM Express® connector.
In parallel to this switch, there is a 2-pin header J40 which can be used to connect an external push button switch instead of
SW1.
7.2.2 Power Switch (Push Button Switch SW2)
The push button switch SW2 is used to switch the ATX main power supply on or off. It controls therefore indirectly the ATX
PS_ON# signal.
In parallel to this switch, there is a 2-pin header J41 which can be used to connect an external push button switch instead of
SW2.
8 Onboard EEPROM
The COME-QEC-1 provides one 64kb EEPROM (U13) for I2C bus evaluation purposes. It can be connected to the COM Express®
I2C signals via the jumpers JP1, JP2 and JP3 and then be accessed via the I2C address 0xAA.
Table 20: DIP Switch SW3 Conf iguration
SWITCH POSTION DESCRIPTION
1 OFF RS232 on J7 bottom connector (COM0)
ON RS422 on J7 bottom connector (COM0)
2 OFF RS232 on J7 upper connector (COM1)
ON RS422 on J7 upper connector (COM1)
3 OFF Disconnect SM bus devices (on SLOT1..4 add-in cards) from COM Express SM Bus signals
ON Connect SM bus devices (on SLOT1..4 add-in cards) to COM Express SM Bus signals
4 OFF USB Type A Host Connector J3 enabled for usage in conjunction with USB4 interface
(USB Type Mini-B Device connector J4 disabled)
ON USB Type Mini-B Device Connector J4 enabled for usage in conjunction with USB4 interface
(USB Type A Host connector J3 disabled)