
UM0894
Getting started
Doc ID 16999 Rev 5
1.3.4
MB851 connectors: P4 pins
1.3.5
MB851 jumper configuration
The following table lists the jumpers configurations on the MB851 board.
Table 8.
MB851 connectors: P4 pins
Pin number
GPIO function
1
+VBRD
2
+VBRD
3
PC0
4
GND
5
PC3
6
GND
7
PC4
8
GND
9
JTCK
10
GND
11
GND
12
GND
13
PC2
14
GND
15
nRST
16
GND
17
GND
18
GND
19
+VJTAG
20
GND
Table 9.
MB851 jumper configuration
Label
Configuration
JP1
Power Mems, temperature sensor and
infrared LED
P2
1-2: battery powered
2-3: reserved
3-4: USB or JTAG powered
www.BDTIC.com/ST