COMe-cWL6 – User Guide Rev. 1.4
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2.3.18.
General Purpose IOs
In addition to COMe spec, all GPIs can also be configured as output and all GPOs as inputs.
Table 26: General Purpose IOs
COMe Signal
SDIO Function
GPI0
DATA0
GPI1
DATA1
GPI2
DATA2
GPI3
DATA3
GPO0
CLK
GPO1
CMD
GPO2
WP
GPO3
CD#
2.3.19.
Hardware Monitor (HWM)
Chip Nuvoton NCT7802Y, SM-Bus Adress: 5C. Used for measuring supply (VCC_12V, VCC_5V_SBY) and RTC Battery
(VCC_RTC) voltage. Used for manual/temperature dependent control and RPM monitoring of on-module and external
Fans (See chapter Onboard Fan Connector, chapter 2.3.21).
2.3.20.
Trusted Platform Module (TPM)
Chip is Infineon SLB9670 (TPM 2.0), connected to BOOT SPI0. TPM_PP pin is connected to COMe TPM_PP pin.
2.3.21.
Onboard Fan Connector
The analog output voltage on this connector is generated via a discrete linear voltage regulator from the PWM signal
of the HWM. It is clipped at 12 V (+/- 10 %) across the whole input range of the module to prevent Fan damage at
higher voltages.
The maximum supply current to the fan connected to the on-module fan connector is 350 mA if the input voltage is
below 13.0 V and is further limited to 150 mA if the input voltage to the module is between 13.0 V and 20.0 V.
Table 27: Onboard Fan Connector
Connector Pin
Description
1
FAN_TACH_IN#
2
V_FAN
3
GND
4
V_FAN
5
V_FAN