Specifications

L506 Hardware Design
Copyright© Shanghai Mobiletek Communication Ltd 6
3.5 USIM interface ....................................................................................................................................... 31
3.5.1 Pin definition ......................................................... 31
3.5.2 Design Guide ........................................................... 32
3.5.3 USIM interface reference circuit ....................................... 32
3.6 PCM interface ........................................................................................................................................ 33
3.6.1 PCM interface definition ............................................... 33
3.6.2 PCM interface application .............................................. 35
3.7 USB2.0 interface .................................................................................................................................... 35
3.7.1 USB interface pin definition ........................................... 35
3.7.2 USB Interface application .............................................. 35
3.8 UART Interface ...................................................................................................................................... 36
3.8.1 Pin description ........................................................ 36
3.8.2 UART interface application ............................................. 37
3.9 Power on/off and reset interface ........................................................................................................... 40
3.9.1 Pin definition ......................................................... 40
3.9.2 Power on sequence ...................................................... 40
3.9.3 Power off sequence ..................................................... 41
3.9.4 Reset sequence ......................................................... 41
3.9.5 Power on/off and reset interface application ........................... 42
3.10 Interactive interface............................................................................................................................. 43
3.10.1 Pin definition ........................................................ 43
3.10.2 interactive interface application ..................................... 43
3.11 Net Light interface ............................................................................................................................... 44
3.11.1 Pin define ............................................................ 44
3.11.2 Net light application ................................................. 44
3.12 SD card interface ................................................................................................................................. 45
3.12.1 Pin descriptions ...................................................... 45
3.12.2 SD card interface design guideline .................................... 46
3.12.3 SD card signal PCB line rules ......................................... 47
3.13 System boot configuration and download .......................................................................................... 47
3.13.1 Pin definition ........................................................ 47
3.13.2 Boot configuration and force USB interface application ................ 47
3.14 Analog and Digital conversion (ADC) interface ................................................................................ 48
3.15 I2C interface ......................................................................................................................................... 48
3.15.1 I2C pin definition .................................................... 48
3.16 Antenna interface ................................................................................................................................. 49
3.16.1 RF signal PCB layout guide ............................................ 49
3.16.2 applications .......................................................... 50
4 PRODUCT CHARACTERISTICS ................................. 51
4.1 Absolute parameters .............................................................................................................................. 51
4.2 Operation condition ............................................................................................................................... 51
4.2.1 Operation voltage ...................................................... 51
4.2.2 Work mode .............................................................. 51