Neoway N720 OpenLinux - Control Interfaces; Pwrkey_N; Table 3-1 VDD_1 P8 Electrical Features

N720 OpenLinux
Hardware User Guide
Copyright © Neoway Technology Co., Ltd
20
protector should be added.
Table 3-1 VDD_1P8 electrical features
Parameter
Minimum
Typical
Maximum
Remarks
Output Voltage
1.76V
1.8V
1.84V
Temperature range: -40°C ~ +85°C
Output Current
50 mA
Do not use this pin to load any components.
3.2 Control Interfaces
Signal
Pin
I/O
Function
Remarks
RESET_N
32
DI
Module reset input
Reset at low level
PWRKEY_N
33
DI
ON/OFF button
Triggered by low level (recommended)
PWRKEY_P
34
DI
ON/OFF button
Triggered by high level
N720 OpenLinux provides two PWRKEY pins: PWRKEY_N and PWRKEY_P, respectively triggered
by low level and high level. It is recommended to use PWRKEY_N.
3.2.1 PWRKEY_N
N720 OpenLinux allows startup by the following controls:

Button

MCU
The values of R1 and R2 are determined by the IO domain of MCU. The voltage across the base
of the triode should not exceed 1.8V.

Automatic startup after powered up