Product Info
Table Of Contents
- About the Document
- Contents
- Table Index
- Figure Index
- 1 Introduction
- 2 Product Concept
- 3 Application Interfaces
- 3.1. General Description
- 3.2. Pin Assignment
- 3.3. Pin Description
- 3.4. Power Supply
- 3.5. Turn on and off Scenarios
- 3.6. VRTC Interface
- 3.7. Power Output
- 3.8. Battery Charge and Management
- 3.9. USB Interfaces
- 3.10. UART Interfaces
- 3.11. (U)SIM Interfaces
- 3.12. SD Card Interface
- 3.13. GPIO Interfaces
- 3.14. I2C Interfaces
- 3.15. I2S Interfaces
- 3.16. SPI Interface
- 3.17. ADC Interfaces
- 3.18. LCM Interfaces
- 3.19. Touch Panel Interfaces
- 3.20. Camera Interfaces
- 3.21. Sensor Interfaces
- 3.22. Audio Interfaces
- 3.23. Emergency Download Interface
- 4 Wi-Fi and BT
- 5 GNSS
- 6 Antenna Interfaces
- 7 Electrical, Reliability and Radio Characteristics
- 8 Mechanical Dimensions
- 9 Storage, Manufacturing and Packaging
- 10 Appendix A References
- 11 Appendix B GPRS Coding Schemes
- 12 Appendix C GPRS Multi-slot Classes
- 13 Appendix D EDGE Modulation and Coding Schemes
- IC & FCC Requirement
Smart LTE Module Series
SC66 Hardware Design
SC66_Hardware_Design 47 / 139
3.5.2. Turn on the Module Automatically
The module can be turned on automatically with CBL_PWR_N. A reference circuit is shown below:
CBL_PWR_N
SC66
1K
Figure 9: Turn on the Module Automatically
If the module is turned on automatically through CBL_PWR_N, then it cannot be turned off unless the
battery is removed.
3.5.3. Reboot/Turn off the Module
Pull down PWRKEY for at least 1s, and then choose to turn off or reboot the module when the prompt
window comes up.
Another way to reboot the module is to drive PWRKEY to a low level for at least 8s. The restart scenario is
illustrated in the following figure.
VBAT
PWRKEY
Others
> 8
s
Reboot
Figure 10: Timing of Rebooting Module
NOTE