I 2 C Connector (J1004); User Interface Buttons - NXP Semiconductors i.MX 8M Nano LPDDR4 EVK User Manual

NXP Semiconductors
Table 5. J1003 pin definition (continued)
No. Net name
27 —
29 —
31 EXP_IO14
33 EXP_IO13
35 SAI5_RXD3
37 SAI5_RXD1
39 GND
2
2.17 I C connector (J1004)
One 8-pin dual-row Pin Header connector (J1004) is provided on the EVK board to support I
use the port for some specific application development.
Table 6. J1004 pin definition
No.
1/2
3/4
5/6
7/8

2.18 User interface buttons

There are two user interface buttons on the EVK board.
2.18.1 Power button (SW901)
The i.MX 8M Nano Applications Processor supports the use of a button input signal to request main SoC power state changes,
such as, ON or OFF, from the PMU.
The ON/OFF button can be used for debounce, OFF-to-ON time, and max timeout. Debounce is used to generate the power-off
interrupt. In the ON state, if ON/OFF button is held longer than the debounce time, the power-off interrupt is generated. In the OFF
state, if the ON/OFF button is held longer than the OFF-to-ON time, the state will transit from OFF to ON. Max timeout can also
be the time for requesting physical power down after the ON/OFF button has been held for the defined time.
2.18.2 Reset button (SW902)
The RESET button, SW902, is directly connected to the PMIC PCA9450B. Holding the RESET button will force to reset the PMIC
power outputs except
NVCC_SNVS_1V8
immediately turned off and reinitiate a boot cycle from the OFF state.
User's Guide
Description
NC
NC
Expansion IO signal
Expansion IO signal
SAI5 receive data signal
SAI5 receive data signal
Ground
I2C3_SCL_3V3
I2C3_SDA_3V3
and
VDD_SNVS_0V8
i.MX 8M Nano LPDDR4 EVK Board Hardware User's Guide, Rev. 1, 12/2020
No. Net name
28 —
30 GND
32 EXP_IO12
34 GND
36 SAI5_RXD2
38 SAI5_RXD0
40 SAI5_RXC
Net name
VDD_3V3
GND
on the EVK board. The i.MX 8M Nano applications processor will be
Description
NC
Ground
Expansion IO signal
Ground
SAI5 receive data signal
SAI5 receive data signal
SAI5 receive clock signal
2
C connection. The developers can
Description
Power Output, 3.3 V
2
I C clock signal
2
I C data signal
Ground
Specifications
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