Module Type Detection; Cmos Battery Holder; Table 14 Module Type Detection Pinout Description; Table 15 Jp8 - Rtc Battery Connection - Congatec conga-TEVAL3/COMe 3.1 User Manual

4.3.4

Module Type Detection

The signals TYPE0#, TYPE1#, TYPE2# and TYPE10# indicate the pinout type of the module connected to the carrier board. These pins are either
open (NC), strapped to ground (GND) or connected to 12 V by the module as shown in the table below.
Table 14 Module Type Detection Pinout Description
TYPE0#
Module Type 1 X (don't care)
Module Type 10 X (don't care)
Module Type 2 NC
Module Type 3 NC
Module Type 4 NC
Module Type 5 NC
Module Type 6 GND
Module Type 7 GND
Note
If the conga-TEVAL3/COMe 3.1 detects an incompatible module pinout, an onboard logic prevents the board from powering up the whole
system by controlling the 'PS_ON#' signal of the ATX power supply.
4.4

CMOS Battery Holder

The conga-TEVAL3/COMe 3.1 provides holder M30 for attaching a CR2032 CMOS battery. The battery supplies power to the RTC and CMOS
memory. To disconnect the RTC battery, set jumper JP8 to position 2-3.
Table 15 JP8 - RTC Battery Connection
Pin Description
1 - 2 Connect RTC battery (default)
2 - 3 Disconnect the RTC battery
Warning
Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used
batteries according to the manufacturer's instructions.
Copyright © 2025 congatec GmbH
TYPE1# TYPE2# TYPE10#
X (don't care) X (don't care) 12V/NC
X (don't care) X (don't care) 47k PD
NC NC 12 V / NC
NC GND 12 V / NC
GND NC 12 V / NC
GND GND 12 V / NC
NC NC NC
NC GND NC
Comment
COM Express Specification 1.0/2.0
COM Express Specification 2.0
COM Express Specification 1.0/2.0
COM Express Specification 1.0/2.0
COM Express Specification 1.0/2.0
COM Express Specification 1.0/2.0
COM Express Specification 2.0/3.0
COM Express Specification 3.0
JP8
1
TEVA31_m001
M30
2 3
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