NXP Semiconductors arm LPCXpresso55S36 - GPIOs and Interrupts

NXP Semiconductors
LPCXpresso55S36UM
LPCXpresso55S36 Development Board User Manual
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J92
BEMF_A/CUR_A 1
2 GPIO
BEMF_B/CUR_B 3
4 GPIO/PWM
6 SS/PWM
BEMF_C/CUR_C 5
VOLT_DCB 7
8 MOSI/PWM
CUR_DCB 9
10 MISO
NC 11
12 SCK
NC 13
14 GND
NC 15
16 AREF (AVDD)
NC 17
18 SDA/analog
NC 19
20 SCL/analog
J102
1 HALL_B/ENA_B
NC 2
3 HALL_A/ENA_A
IOREF 4
RESET 6
5 PWM_CB_2
7 PWM_CT_2
3V3 8
9 PWM_BB_2
5V0 10
11 PWM_BT_2
GND 12
13 PWM_AB_2
GND 14
15 PWM_AT_2
VIN2_EXT 16
J132
1 NC
ADC 2
3 NC
ADC 4
CMP 6
5 NC
7 NC
GPIO 8
9 NC
SDA/analog 10
11 NC
SCL/analog 12
J122
NC 1
2 RXD
HALL_C/ENC_I 3
4 TXD
6 INT0
NC 5
NC 7
8 INT1/PWM1_A1
NC 9
10 GPIO
NC 11
12 GPIO/PWM1_A2
NC 13
14 GPIO
NC 15
16 GPIO
Legends:
Motor control
Arduino connection
Figure 14. Motor 2 control + Arduino socket connector pinouts
2.14 GPIOs and interrupts
The table below lists the target MCU pins that are used as general-purpose inputs/
outputs (GPIOs) on the LPCXpresso55S36 board. Some of these pins are also used for
other purposes on the board.
Target MCU pin Board devices where GPIO function is used GPIO mode control
PIO1_14 Audio expansion connector (pin 21) Only for GPIO function
PIO1_13 Motor 2 control + Arduino socket (pin 8 of connector J132) Only for GPIO function
PIO1_27 Motor 2 control + Arduino socket (pin 2 of connector J92) To enable GPIO mode, short
pins 2-3 of jumper JP65
Motor 2 control + Arduino socket (pin 4 of connector J92)PIO1_29
Audio expansion connector (pin 22)
To enable GPIO mode, short
pins 2-3 of jumper JP64
PIO1_8 Motor 2 control + Arduino socket (pin 10 of connector J122) To enable GPIO mode, set
configuration resistor R523 in
position B (2-3 shorted)
PIO1_25 Motor 2 control + Arduino socket (pin 12 of connector J122) GPIO mode is enabled by
default (pins 1-2 of jumper JP52
are shorted)
PIO1_0 Motor 2 control + Arduino socket (pin 14 of connector J122) Only for GPIO function
PIO1_28 Motor 2 control + Arduino socket (pin 16 of connector J122) Only for GPIO function
Table 22. LPCXpresso55S36 GPIOs
The onboard audio codec is the only interrupt source on the LPCXpresso55S36 board.
Interrupt triggered by audio codec is received at the target MCU GPIO pin PIO1_13.
LPCXpresso55S36UM All information provided in this document is subject to legal disclaimers. © NXP B.V. 2022. All rights reserved.
User manual Rev. 2 — 5 September 2022
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