User`s guide

Copyright © 2008 congatec AG B915m10 52/92
Table 22 Module Type Denition Signal Description
Signal Pin # Description I/O Comment
TYPE0#
TYPE1#
TYPE2#
C54
C57
D57
The TYPE pins indicate to the Carrier Board the Pin-out Type that is implemented on the module. The pins are tied on
the module to either ground (GND) or are no-connects (NC). For Pinout Type 1, these pins are don’t care (X).
PDS TYPE[0:2]# signals
are available on all
modules following
the Type 2-5 Pinout
standard.
The conga-B915 is
based on the COM
Express Type 2 pinout
therefore these pins
are not connected.
TYPE2# TYPE1# TYPE0#
X
NC
NC
NC
NC
X
NC
NC
GND
GND
X
NC
GND
NC
GND
Pinout Type 1
Pinout Type 2
Pinout Type 3 (no IDE)
Pinout Type 4 (no PCI)
Pinout Type 5 (no IDE, no PCI)
The Carrier Board should implement combinatorial logic that monitors the module TYPE pins and keeps power off (e.g
deactivates the ATX_ON signal for an ATX power supply) if an incompatible module pin-out type is detected. The Carrier
Board logic may also implement a fault indicator such as an LED.
Table 23 Power and GND Signal Descriptions
Signal Pin # Description I/O PU/PD Comment
VCC_12V C104-C109
D104-D109
Primary power input: +12V nominal. All available VCC_12V pins on the connector(s) shall be used. P
GND C1, C11, C21, C31,
C41, C51, C60, C70,
C76, C80, C84, C87,
C90, C93, C96, C100,
C103, C110, D1, D11,
D21, D31, D41, D51,
D60, D67, D70, D76,
D80, D84, D87, D90,
D93, D96, D100,
D103, D110
Ground - DC power and signal and AC signal return path.
All available GND connector pins shall be used and tied to carrier board GND plane.
P
Table 24 Miscellaneous Signal Descriptions
Signal Pin # Description I/O PU/PD Comment
FAN_PWMOUT C67 Fan speed control. Uses the Pulse Width Modulation (PWM) technique to control the
fan’s RPM.
O OD
FAN_TACHOIN C77 Fan tachometer input. I OD Requires a fan with a two pulse output.
PP_TPM C83 Physical Presence pin of Trusted Platform Module (TPM). Active high. TPM chip has
an internal pull-down. This signal is used to indicate Physical Presence to the TPM.
I 3.3V Trusted Platform Module chip is optional.