User's Manual

USER MANUA
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V0.6
© 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 11
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STM 31X / STM 31XC
ADIO6 DI_2 Digital input Input read ~2 ms after wake-up.
See 2.7.2.
Internal pull-up
LED Transmission
indicator LED
Flashes during radio transmission.
Active LOW.
ADIO7
Programming I/F
CW_1 Encoding input for
wake-up cycle
Configuration interface.
Leave open or connect to GND. See 2.7.1.
Internal pull-up
SCSEDIO0
Programming I/F
CW_0 Encoding input for
wake-up cycle
Configuration interface.
Leave open or connect to GND. See 2.7.1.
Internal pull-up
SCLKDIO1
Programming I/F
CP_1 Encoding input for
retransmission
Configuration interface.
Leave open or connect to GND. See 2.7.1.
Internal pull-up
WSDADIO2
Programming I/F
CP_0 Encoding input for
retransmission
Configuration interface.
Leave open or connect to GND. See 2.7.1.
Internal pull-up
RSDADIO3
Programming I/F
WAKE0 WAKE0 Wake input Change of logic state leads to wake-up and
transmission of a telegram.
Must be connected to UVDDext or GND!
At time of delivery WAKE0 is connected to
UVDDext via a jumper at the connector.
See also 3.1.
WAKE1 LRN LRN input Change of logic state to LOW leads to
wake-up and transmission of teach-in tele-
gram.
Internal pull-up to UVDD.
See also 2.7.2, 2.8.2, and 3.1.
2.3.1 Interface supply voltage
The IOVDD pin of EO3000I is internally connected to DVDD. For digital communication with
other circuitry therefore a voltage of 1.8 V has to be used. While the module is in deep
sleep mode the microcontroller with all its peripherals is switched off and DVDD, IOVDD,
and SWPWR are not supplied.
If DVDD=0 V and IOVDD is not supplied (e.g. while in sleep mode), do not apply
voltage to ADIO0 to ADIO7 and the pins of the serial interface (SCSEDIO0,
SCLKDIO1, WSDADIO2, RSDADIO3). This may lead to unpredictable malfunction
of the device.
For I/O pins configured as analog pins the IOVDD voltage level is not relevant! See
also 2.3.2.