ME910G1 HW Design Guide
1VV0301593 Rev.7 Page 4 of 98 2021-02-02
Idle mode 26
ME910G1-W1 Connected Mode 27
ME910G1-WW and ME910G1-WWV Connected Mode 28
General Design Rules 29
Electrical Design Guidelines of the power supply 29
+5V Source Power Supply Design Guidelines 29
+12V Source Power Supply Design Guidelines 30
Battery Source Power Supply Design Guidelines 31
Thermal Design Guidelines 31
Power Supply PCB layout Guidelines 32
VAUX Power Output 34
RTC Supply 34
5. DIGITAL SECTION 35
Logic Levels 35
Power On 36
Power Off 40
Wake from deep sleep mode 42
Unconditional Shutdown 42
Fast shut down 45
Fast Shut Down by Hardware 45
Fast Shut Down by Software 46
Communication ports 47
USB 2.0 HS 47
SPI 48
SPI Connections 48
Serial Ports 49
Modem serial port 1 (USIF0) 49
Modem serial port 2 (USIF1) 50
RS232 level translation 51
General purpose I/O 53
Using a GPIO as INPUT 53
Using a GPIO as OUTPUT 54
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