CLM920_RC3(RV3 RE3)LCC Series CAT1 Module Hardware Manual
Shanghai YUGE Information Technology Co., Ltd.
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Contents
Chapter 1. introduction...........................................................................................................- 8 -
Chapter2. Module overview................................................................................................... - 9 -
2.1 Module Introduction..................................................................................................... - 9 -
2.2 Module characteristics.................................................................................................. - 9 -
2.3 Module function..........................................................................................................- 12 -
3.1 Overview of this chapter.............................................................................................- 14 -
3.2 Module interface......................................................................................................... - 15 -
3.2.1 Module pinout...................................................................................................... - 15 -
3.2.2 Pin definition........................................................................................................ - 16 -
3.3.1 Power supply design.............................................................................................- 23 -
3.3.2 Power reference circuit.........................................................................................- 25 -
3.3.3 VDD_EXT Voltage output................................................................................... - 26 -
3.4.1 Module boot......................................................................................................... - 26 -
3.4.2 Boot sequence.......................................................................................................- 27 -
3.4.3 Module shutdown................................................................................................. - 28 -
3.4.4 Reset control.........................................................................................................- 29 -
3.5 USB interface..............................................................................................................- 31 -
3.6 UART interface...........................................................................................................- 32 -
3.6.1 Main UART..........................................................................................................- 32 -
3.6.2 Debug UART port................................................................................................ - 34 -
3.6.3 RI Signal interface................................................................................................- 34 -
3.7.1 USIM card reference circuit................................................................................. - 35 -
3.7.2 USIM_ PRESENCE Hot Swap Reference Design...............................................- 36 -
3.8 General GPIO interface...............................................................................................- 37 -
3.9 Status indication interface...........................................................................................- 38 -
3.10 PCM Digital voice interface..................................................................................... - 39 -
3.11 I2C bus...................................................................................................................... - 41 -
3.12 SDIO interface.......................................................................................................... - 41 -
