UM1817 datasheet(14/58 Pages) STMICROELECTRONICS

14 / 58 page

Hardware layout and configuration

UM1817

14/58

DocID026902 Rev 3

Table 2. Power source related jumpers

Jumper

Description

JP15

JP15 is used to select one of the three possible power supply resources. For

power supply jack (CN16) to the STM32091C-EVAL only, JP15 is set as

shown to the right:

For power supply from the daughterboard connectors (CN7) to STM32091C-

EVAL only, JP15 is set as shown to the right:

For power supply from USB (CN12) of ST-LINK/V2-1 to STM32091C-EVAL only,

JP15 is set as shown to the right: (Default Setting)

For power supply from power supply jack (CN16) to both STM32091C-EVAL

and daughterboard connected on CN6 and CN7, JP15 is set as shown to the

right (daughterboard must not have its own power supply connected)

JP7

The Vbat pin of STM32F091VCT6 is connected to VDD when JP7 is set as

shown to the right (Default setting):

The Vbat pin of STM32F091VCT6 is connected to the 3 V battery when JP7 is

set as shown to the right:

JP10

The VDDIO2 pin of STM32F091VCT6 is connected to 3.3V when JP10 is set as

shown to the right (Default setting):

The VDDIO2 pin of STM32F091VCT6 is connected to VDD_ADJ when JP10 is

set as shown to the right:

1 2 3

UM1817 Datasheet(PDF) 14 Page - STMicroelectronics