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FIBOCOM NL668-AM Hardware User Manual
Page 4 of 62
Contents
1
Foreword ....................................................................................................................... 9
1.1
Introduction ................................................................................................................... 9
1.2
Safety Instruction .......................................................................................................... 9
1.3
Reference Standards .................................................................................................. 10
1.4
Related Document ...................................................................................................... 11
1.5
Federal Communication Commission Interference Statement..................................... 11
2
Product Overview ....................................................................................................... 13
2.1
Product Introduction ................................................................................................... 13
2.2
Product Specifications ................................................................................................ 13
2.3
Hardware Diagram ..................................................................................................... 14
3
Application Interface .................................................................................................. 16
3.1
LCC Interface ............................................................................................................. 16
3.1.1
Pin distribution ............................................................................................................... 16
3.1.2
Pin definition .................................................................................................................. 17
3.2
Power Supply ............................................................................................................. 22
3.2.1
Power supply ................................................................................................................. 23
3.2.2
1.8V Output ................................................................................................................... 24
3.2.3
Power consumption....................................................................................................... 24
3.3
Control Signal ............................................................................................................. 25
3.3.1
Module power on ........................................................................................................... 26
3.3.2
Module power off ........................................................................................................... 27
3.3.3
Module reset ................................................................................................................. 28
3.4
USB Interface ............................................................................................................. 30
3.4.1
USB interface definition ................................................................................................ 30
3.5
USIM Interface ........................................................................................................... 31
3.5.1
USIM pin ........................................................................................................................ 31
3.5.2
USIM interface circuit .................................................................................................... 31
3.5.3
USIM hot plug ............................................................................................................... 33
3.5.4
USIM design requirements ........................................................................................... 34
3.6
UART Interface ........................................................................................................... 34
3.6.1
UART interface definition .............................................................................................. 34
3.6.2
UART port application ................................................................................................... 35
3.7
Status Indicator ........................................................................................................... 36
