Telit Wireless Solutions BLUEMOD+S42/AI/ADC/LUA, Руководство пользователя

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S42
Hardware User Guide
1VV0301303 Rev. 11
Page 4 of 85 2021-05-06
Not Subject to NDA
3.3.5. Dynamic I/O Signal Type Changes Depending on UICP Status
23
3.3.6. Additional I/O Signals for Serial Interface Functionality 24
3.3.6.1. Hang-up via GPIO Signal 24
3.3.6.2. GPIO’S IO [A, B, C, D] 24
3.4. GPIO Interface 24
3.5. I
2
C Interface 25
3.6. SPI Serial Peripheral Interface 25
3.7. Bluetooth Radio Interface 26
3.8. NFC Function 26
3.8.1. NFCT Antenna Recommendations 26
3.8.2. Power Back Feeding 27
3.9. Slow Clock Interface 27
3.9.1. 32,768 kHz Crystal Oscillator Specification (32k XOSC) 28
3.9.2. Connection of an External 32,768 kHz Crystal 28
3.10. Test Mode 29
3.11. Operating in a Power-Switched Environment 30
3.12. Serial Wire Debug Interface 31
3.13. DC/DC Converter 31
3.14. Analog/Digital Converter (ADC) 31
4. MODULE PINS 34
4.1. Pin Numbering 34
4.2. General Pin Description 35
4.3. Application Specific CEN Pin Configuration 36
4.4. Application Specific ADC/TWI Pin Configuration 37
4.5. Application Specific ADC/LUA Pin Configuration 39
4.6. Handling of Unused Signals 41
5. ELECTRICAL CHARACTERISTICS 42
5.1. Absolute Maximum Ratings 42
5.2. Operating Conditions 42
5.3. Environmental Requirements 42
5.4. DC Parameter 42