Ext; I/Os Jumper Configuration - NXP Semiconductors KITFS23LDOEVM User Manual

NXP Semiconductors
Table 13. I/O configuration and monitoring headers (J23/J10)
Schematic label
J23-1
J23-2/4/6/8/10
J23-3
J23-5
J23-7
J23-9
J10-1
J10-2
J10-3
J10-4
J10-5
J10-6
J10-7
J10-8
J10-9
J10-10/12
J10-11
4.4.11.1 External voltage monitoring via VMON_EXT
The FS2300 can monitor an external regulator through VMON_EXT monitoring pin, accessible via J10-8 on
the KITFS23LDOEVM. The regulator connected to VMON_EXT must be at least 1 V to be compatible with
overvoltage and undervoltage monitoring thresholds. An external resistor bridge is used to divide the regulator
voltage if higher than 1 V, and set the middle point to 1 V. The resistor bridge value can be adjusted by using a
screwdriver on the R3 potentiometer.
Figure 7. External voltage monitoring voltage divider

4.4.11.2 I/Os jumper configuration

The configuration of HVIOx, LVIOx, and WAKEx pins must be done by OTP. The hardware must be configured
depending on the chosen functionality for HVIOx, LVIOx, and WAKEx pins. The following table gives the
necessary jumper configuration for each pin-function association. A default configuration of the jumpers and
switches is given in Section
UM11879
User manual
Signal name
HVIO1
FCCU2
HVIO2
LVIO3
LVIO4
MOSI/LVI5
WAKE1_IN
WAKE1
WAKE2_IN
WAKE2
LIMP0
MISO/LVO6
FS0B
VMON_EXT
WAKEx_CS_IN
GND
HVIOx_CS_IN
Middle point: 1.0 V
VMON_EXT
37
4.4, matching the default I/O configuration in blue in the table.
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 25 September 2023
Description
HVIO1 signal access.
FCCU2 signal access.
HVIO2 signal access.
LVIO3 signal access.
LVIO4 signal access.
MOSI signal access in SPI mode. LVI5 in I
WAKE1 input signal access.
WAKE1 signal access.
WAKE2 input signal access.
WAKE2 signal access.
LIMP0 signal access.
MISO signal access in SPI mode. LVO6 in I
FS0B signal access.
VMON_EXT signal access.
WAKEx cyclic sensing input signal access.
Ground.
HVIOx cyclic sensing input signal access.
2
R2
3 1
10 kΩ R3
20 kΩ
R9
5.1 kΩ
R2 value
GND
10 kΩ
5.1 kΩ
KITFS23LDOEVM evaluation board
2
C mode.
2
C mode.
VMON_EXT
VMON_EXT
3 V to 7 V
2 V to 6 V
aaa-049446
UM11879
© 2023 NXP B.V. All rights reserved.
15 / 73