UM1454
HW description
Doc ID 022085 Rev 2
11/28
2.3 Board
connections
Table 4.
Board connections and configuration
Description
J1
(2 poles)
Ext. VIN (typ. +5 V) external power supply plug
J2
1
Extension connector: +Vext. - Positive pole for an ex5 V supply (i.e battery). To be
used as an alternative to J1. See
for use of the JMP1
2
Extension connector: GND - Negative pole for an ex 5 V supply (i.e. battery). To be
used as an alternative to J1. See
for use of the JMP1
3
Extension connector: +3.3 V_O - (current limited 3.3 V output, max. 10 mA)
4
Extension connector: GND - (system ground 0 Volt)
5
Extension connector: PC5 - (STM32W108CB signal)
6
Extension connector: PC1 - (STM32W108CB signal)
7
Extension connector: PA7 - (STM32W108CB signal)
8
Extension connector: PA6 - (STM32W108CB signal)
9
Extension connector: PB6 - (STM32W108CB signal)
10
Extension connector: PB7 - (STM32W108CB signal)
11
Extension connector: PB5 - (STM32W108CB signal)
12
Extension connector: PB0 - (STM32W108CB signal)
13
Extension connector: PA5 - (STM32W108CB signal)
14
Extension connector: PA4 - (STM32W108CB signal)
15
Extension connector: PA3 - (STM32W108CB signal)
16
Extension connector: PA0 - (STM32W108CB signal)
17
Extension connector: PA1 (I
2
Cbus SDA) - (STM32W108CB signal)
18
Extension connector: PA2 (I
2
Cbus SCL) - (STM32W108CB signal)
19
Extension connector: PC0/JTRST - (STM32W108CB signal)
20
Extension connector: PC3/JTDI - (STM32W108CB signal)
21
Extension connector: PC4/JTMS - (STM32W108CB signal)
22
Extension connector: SWCLK/JTCK - (STM32W108CB signal)
23
Extension connector: PC2/JTDO - (STM32W108CB signal)
24
Extension connector: nRESET - (STM32W108CB signal)
J3
1
JTAG con3.3 V supply output (warning: current limited, max. 10 mA)
2
JTAG con3.3 V supply output (warning: current limited, max. 10 mA)
3
JTAG connector - JTRST
4
JTAG connector - GND (system ground 0 V)
5
JTAG connector - JTDI
6
JTAG connector - GND (system ground 0 V)
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