User's Manual

Cinterion

EHS8 Hardware Interface Overview Page 11 of 43

1.1 Key Features at a Glance

 EHS8_HIO_v02.770 2014-08-11

Confidential / Preliminary

Feature Implementation

Microsoft™ compatibility RIL for Pocket PC and Smartphone

SIM Application Toolkit SAT Release 99

Firmware update Generic update from host application over ASC0 or USB modem.

Interfaces

Module interface

Surface mount device with solderable connection pads (SMT application

interface). Land grid array (LGA) technology ensures high solder joint

reliability and provides the possibility to use an optional module mounting

socket.

For more information on how to integrate SMT modules see also

[3]. This

application note comprises chapters on module mounting and application

layout issues as well as on additional SMT application development

equipment.

USB USB 2.0 High Speed (480Mbit/s) device interface, Full Speed (12Mbit/s)

compliant

2 serial interfaces ASC0 (shared with GPIO lines):

• 8-wire modem interface with status and control lines, unbalanced,

asynchronous

• Adjustable baud rates: 1,200bps to 921,600bps

• Autobauding: 1,200bps to 230,400bps

• Supports RTS0/CTS0 hardware flow control.

• Multiplex ability according to GSM 07.10 Multiplexer Protocol. ASC1

(shared with GPIO lines):

• 4-wire, unbalanced asynchronous interface

• Adjustable baud rates: 1,200bps to 921,60bps

• Autobauding: 1,200bps to 230,400bps

• Supports RTS1/CTS1 hardware flow control

Audio 1 digital interface (PCM), shared with GPIO lines

UICC interface Supported SIM/USIM cards: 3V, 1.8V

GPIO interface

14 GPIO lines shared with ASC0 lines, LED signalling, PWM functionality,

fast shutdown and pulse counter 4 GPIO lines shared with PCM interface

4 GPIO lines shared with ASC1, SPI and HSIC interfaces

C interface Supports I

C serial interface

HSIC interface High-Speed Inter-Chip (HSIC) interface for USB chip-to-chip interconnect

including Link Power Management (LPM) lines shared with GPIO lines

SPI interface Serial peripheral interface, shared with GPIO lines

Antenna interface pads

Power on/off, Reset