UM0193 datasheet(29/35 Pages) STMICROELECTRONICS

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UM0193

Jumper settings

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Appendix C

Jumper settings

Table 15 describes the jumper settings for the ARMIC30 Evaluation Board.

Table 15.

ARMIC30 jumper settings

Jumper

Function

Description

J32

+5V DC application voltage supply to

DC/DC converter (U6)

When pins 1 and 2 are connected, the +5V DC

voltage supply is connected.

Otherwise, it is disconnected.

J33

+3.3V DC application part supplying

connection to DC/DC converter (U6)

reference pin or linear voltage regulator

(U7)

When pins 1 and 2 are connected, the DC/DC

converter (U6) reference pin supplies the 3.3V

application part voltage.

When pins 2 and 3 are connected, the linear

voltage regulator (U7) supplies the 3.3V

application part voltage.

J34

GND test point

Both sides are connected to GND.

MCU Boot mode selection (M0 pin)(1)

When pins 1 and 2 are connected, the M0 pin is

connected permanently to GND.

When pins 2 and 3 are connected, the M0 pin is

connected permanently to +5V DC.

MCU Boot mode selection (M1 pin)(1)

When pins 1 and 2 are connected, the M1 pin is

connected permanently to GND.

When pins 2 and 3 are connected, the M1 pin is

connected to +5V DC during a microcontroller

reset. After a reset, it is tied to GND.

J35

RS-232 loop selection

When pins 1 and 2 are connected, the RS-232 is

in Loop mode and the Rx and Tx lines are

connected together (for hardware or software

testing).

Otherwise, the RS-232 connection is in Normal

mode

J10 and

J13

RS-485 bus termination

When pins 1 and 2 are connected, the RS-485

bus is terminated. (Node is at the end of the RS-

485 bus.)(2)

Otherwise, the RS-485 bus is unterminated.

J14

CAN channel termination

When pins 1 and 2 are connected, the CAN bus

is terminated. (3)

Otherwise, the CAN bus is unterminated.

J19, J21

and J23

+5V DC connection (to pin number 1 of

corresponding general purpose / motor

control connector)

When pins 1 and 2 are connected, the

corresponding +5V DC supply is connected.

Otherwise, it is disconnected.

J16

+5V DC connection to pin number 1 of

the 8-bit Input/General Purpose

connector (J17)

When pins 1 and 2 are connected, the +5V DC

supply is connected.

Otherwise, it is disconnected.

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