Datasheet
NXP Semiconductors
AN12395
OM-SE050ARD hardware overview
AN12395 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2019. All rights reserved.
Application note Rev. 1.1 — 27 June 2019
534311 6 / 24
4 Jumpers overview
The OM-SE050ARD board uses individual jumpers to configure settings related with the
SE050 interfaces, power supply and power modes. This section provides an overview to
the OM-SE050ARD jumpers and its configuration options.
4.1 I
2
C configuration
The OM-SE050ARD has jumpers that allow you to control the configuration of the I
2
C
slave and master interfaces available in SE050. These jumpers are:
• J9, J10: Configures the I
2
C master pull up connection.
• J15, J17: Configures the I
2
C slave connection.
• J37, J38: Configures the I
2
C slave interface pull up resistor.
Table 2 describes the OM-SE050ARDjumper settings for each I
2
C setting configuration.
Table 2. Jumpers for I
2
C configuration
Jumper Description Open 1-2 3-4
J9 I
2
C Master pull up
connection
not connected
(Default)
3k3 Ohm n.a.
J10 I
2
C Master pull up
connection
not connected
(Default)
3k3 Ohm n.a.
J15 I
2
C Slave SDA connection not connected Arduino R3 J4:5 Arduino R3 J2:9
(Default)
J17 I
2
C Slave SCL connection not connected Arduino R3 J4:6 Arduino R3 J2:10
(Default)
J18 SE050_IO2 routing n.a Routed to J11:9
(Default)
Routed to J2:3
J37 I
2
C Slave SCL pull up 3k3 Ohm
(Default)
560 Ohm n.a.
J38 I
2
C Slave SDA pull up 3k3 Ohm
(Default)
560 Ohm n.a.
Figure 3 highlights in blue the location of theOM-SE050ARD for I
2
C settings
configuration.