User Manual

USER MANUAL V1.05
© 2013 EnOcean | www.enocean.com STM 330 / STM 331 / STM 330C / STM 332U / STM 333U User Manual V1.10 | Page 14/33
STM 330 / STM 331 / STM 330C / STM 332U / STM 333U
3.3.4 Programming Interface
The positions of the pads needed for programming are shown in the layout below. Data are
available from EnOcean as Gerber files (STM3XY(C)_05.GTL and STM3XY(C)_05.GK0).
Number
Symbol
1
VDD
2
GND
3
PROG_EN
4
RESET
5
SCSEDIO0
6
SCLKDIO1
7
WSDADIO2
8
RSDADIO3
9
ADIO7
10
ADIO6
Only if in addition
to programming
I/F a serial inter-
face is needed
Top layer
If VDD is not accessible, e.g. because the module shall be programmed via the pin connec-
tor, please use VCHAR instead of VDD (see 3.3).