M10 Hardware Design
M10_HD_V3.0 - 2 -
Contents
Contents ............................................................................................................................................ 2
Table Index ........................................................................................................................................ 4
Figure Index ...................................................................................................................................... 5
0. Revision history ............................................................................................................................ 7
1. Introduction ................................................................................................................................... 9
1.1. Related documents .............................................................................................................. 9
1.2. Terms and abbreviations .................................................................................................... 10
1.3. Directives and standards .................................................................................................... 12
1.3.1. FCC Statement ........................................................................................................ 12
1.3.2. FCC Radiation exposure statement ......................................................................... 12
1.3.3. Industry Canada licence .......................................................................................... 12
1.4. Safety cautions .................................................................................................................. 13
2. Product concept ........................................................................................................................... 15
2.1. Key features ...................................................................................................................... 15
2.2. Functional diagram ............................................................................................................ 17
2.3. Evaluation board ............................................................................................................... 18
3. Application interface ................................................................................................................... 19
3.1. Pin of module .................................................................................................................... 19
3.1.1. Pin assignment ......................................................................................................... 19
3.1.2. Pin description ......................................................................................................... 20
3.2. Operating modes ............................................................................................................... 25
3.3. Power supply ..................................................................................................................... 26
3.3.1. Power supply pins.................................................................................................... 27
3.3.2. Minimizing supply voltage drop.............................................................................. 27
3.3.3. Monitor power supply ............................................................................................. 28
3.4. Power up and down scenarios ........................................................................................... 28
3.4.1. Power on .................................................................................................................. 28
3.4.2. Power down ............................................................................................................. 31
3.4.3. Restart module using the PWRKEY pin.................................................................. 35
3.5. Power saving ..................................................................................................................... 36
3.5.1. Minimum functionality mode .................................................................................. 36
3.5.2. SLEEP mode (slow clock mode) ............................................................................. 36
3.5.3. Wake up module from SLEEP mode ...................................................................... 37
3.6. Summary of state transitions (except SLEEP mode) ......................................................... 37
3.7. RTC backup ...................................................................................................................... 37
3.8. Serial interfaces ................................................................................................................. 39
3.8.1. UART Port .............................................................................................................. 40
3.8.2. Debug Port ............................................................................................................... 43
3.8.3. UART Port 3 ........................................................................................................... 44
3.8.4. UART Application .................................................................................................. 45
3.9. Audio interfaces................................................................................................................. 46