User's Manual

Cinterion

EHS8 Hardware Interface Overview Page 3 of 43

 EHS8_HIO_v02.770 2014-08-11

Confidential / Preliminary

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Contents

1 Introduction ........................................................................................................................... 8

1.1 Key Features at a Glance .......................................................................................... 8

1.2 EHS8 System Overview .......................................................................................... 13

2 Interface Characteristics .................................................................................................... 14

2.1 Application Interface ................................................................................................ 14

2.1.1 USB Interface ............................................................................................ 14

2.1.2 Serial Interface ASC0 ................................................................................ 15

2.1.3 Serial Interface ASC1 ................................................................................ 15

2.1.4 UICC/SIM/USIM Interface ......................................................................... 16

2.1.5 Digital Audio Interface ............................................................................... 18

2.1.6 GPIO Interface .......................................................................................... 18

2.1.7 I

C Interface .............................................................................................. 19

2.1.8 SPI Interface ............................................................................................. 19

2.1.9 HSIC Interface .......................................................................................... 19

2.1.10 PWM Interfaces ...................................................................................... 20

2.1.11 Pulse Counter ......................................................................................... 20

2.1.12 Status LED .............................................................................................. 20

2.1.13 Fast Shutdown ........................................................................................ 20

2.2 RF Antenna Interface ............................................................................................... 21

2.2.1 Antenna Installation ................................................................................... 22

2.3 GPS Interface .......................................................................................................... 23

2.3.1 GPS Receiver ........................................................................................... 23

2.3.2 GPS Antenna ............................................................................................ 23

2.4 Sample Application .................................................................................................. 23

3 Operating Characteristics .................................................................................................. 26

3.1 Operating Modes ..................................................................................................... 26

3.2 Power Supply .......................................................................................................... 26

4 Mechanical Dimensions, Mounting and Packaging ......................................................... 28

4.1 Mechanical Dimensions of EHS8 ............................................................................ 28

5 Regulatory and Type Approval Information ...................................................................... 30

5.1 Directives and Standards ........................................................................................ 30