Telit Communications S p A 863P3 User Manual

GE863-PRO3 Hardware User Guide

1vv0300773a Rev. 1 DRAFT - 24/04/08

GE863-PRO3 Hardware User Guide

1vv0300773a Rev. 1 DRAFT -

24/04/08

Contents

1 Overview ...........................................................................................................................7

2 GE863-PRO3 Mechanical Dimensions ............................................................................8

3 GE863-PRO3 module connections..................................................................................9

3.1 BALL-OUT............................................................................................................................. 9

3.2 BALLS LAYOUT.................................................................................................................. 15

3.3 ARM Port IO multiplexing..................................................................................................... 16

4 Hardware Commands ....................................................................................................19

4.1 Turning ON the GE863-PRO3 GSM Engine......................................................................... 19

4.2 Turning OFF the GE863-PRO3 GSM Engine ....................................................................... 21

4.2.1

Hardware shutdown........................................................................................................................21

4.3 Hardware Unconditional Reboot of GSM Engine................................................................. 21

4.4 Turning ON/OFF the GE863-PRO3 ARM............................................................................. 22

5 Power Supply..................................................................................................................24

5.1 GSM Power Supply Requirements....................................................................................... 24

5.2 ARM Power Supply Requirements....................................................................................... 25

5.3 VRTC Backup supply........................................................................................................... 25

5.4 General Design Rules.......................................................................................................... 26

5.4.1

Electrical design Guidelines............................................................................................................26

5.4.1.1 + 5V input Source Power Supply Design Guidelines .................................................................27

5.4.1.2 + 12V input Source Power Supply Design Guidelines ...............................................................28

5.4.1.3 Battery Source Power Supply Design Guidelines ......................................................................30

5.4.1.4 Battery Charge control Circuitry Design Guidelines...................................................................30

5.4.2

Thermal Design Guidelines ............................................................................................................32

5.4.3

Power Supply PCB layout Guidelines ............................................................................................33

6 Antenna...........................................................................................................................34

6.1 GSM Antenna Requirements............................................................................................... 34

6.2 GSM Antenna - PCB line Guidelines.................................................................................... 35

6.3 GSM Antenna - installation Guidelines................................................................................. 36

6.4 Electro Magnetic Interference - Guidelines.......................................................................... 36

6.5 Logic level specifications ..................................................................................................... 37

6.5.1

GSM Reset signal...........................................................................................................................39

7 Serial Ports .....................................................................................................................40

7.1 MODEM SERIAL PORT ...................................................................................................... 40

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8 Audio Section Overview ................................................................................................45

8.1 Microphone Paths Characteristic and Requirements............................................................ 46

8.2 General Design Rules.......................................................................................................... 49

8.3 Other considerations............................................................................................................ 49

8.4 Microphone Biasing............................................................................................................. 50

8.4.1

Balanced Microphone Biasing ........................................................................................................50

8.4.2

Unbalanced Microphone Biasing....................................................................................................51

8.5 Microphone Buffering........................................................................................................... 53

8.5.1

Buffered Balanced Mic....................................................................................................................53

8.5.2

Buffered Unbalanced (Single Ended) Microphone.........................................................................55

9 OUTPUT LINES (Speaker)..............................................................................................58

9.1 Short description.................................................................................................................. 58

9.2 Output Lines Characteristics................................................................................................ 59

9.3 General Design Rules.......................................................................................................... 60

9.3.1

Noise Filtering.................................................................................................................................60

9.4 Handset Earphone Design................................................................................................... 61

9.5 Hands-Free Earphone (Low Power) Design......................................................................... 62

9.6 Car Kit Speakerphone Design.............................................................................................. 63

9.7 The Evaluation Kit for Telit GE863-PRO3 Modules............................................................... 64

9.7.1

Short Description ............................................................................................................................64

10 General Purpose I/O.......................................................................................................65

10.1

Using a GPIO Pad as INPUT ........................................................................................... 66

10.2

Using a GPIO Pad as OUTPUT........................................................................................ 66

10.3

Using the RF Transmission Control GPIO7...................................................................... 66

10.4

Using the RFTXMON Output GPIO3................................................................................ 66

10.5

Using the Alarm Output.................................................................................................... 67

10.6

Using the Buzzer Output GPIO4....................................................................................... 67

10.7

Indication of network service availability........................................................................... 68

10.8

RTC Bypass out............................................................................................................... 69

10.9

VAUX1 power output........................................................................................................ 69

11 Mounting the GE863-PRO3 on the Application Board.................................................70

11.1

General............................................................................................................................ 70

11.1.1 Recommended footprint for the application....................................................................................71

11.1.2 Stencil.............................................................................................................................................72

11.1.3 PCB pad Design .............................................................................................................................72

11.1.4 Solder paste....................................................................................................................................73

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11.1.5 GE863-PRO3 Solder Reflow ..........................................................................................................74

11.1.6 Packing System..............................................................................................................................76

11.1.7 Moisture Sensibility.........................................................................................................................78

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12 Conformity Assessment Issues....................................................................................79

13 SAFETY RECOMMANDATIONS.....................................................................................81

14 Document Change Log..................................................................................................82

This document is relating to the following products:

GE863-PRO3 3990250691 GE863-PRO3 with Linux 3990250698

GE863-PRO3 Hardware User Guide

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GE863-PRO3 Hardware User Guide

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DISCLAIMER

The information contained in this document is the proprietary information of Telit Communications S.p.A. and its affiliates (“TELIT”). The contents are confidential and any disclosure to persons other than the officers, employees, agents or subcontractors of the owner or licensee of this document, without the prior written consent of Telit, is strictly prohibited.

Telit makes every effort to ensure the quality of the information it makes available. Notwithstanding the foregoing, Telit does not make any warranty as to the information contained herein, and does not accept any liability for any injury, loss or damage of any kind incurred by use of or reliance upon the information.

Telit disclaims any and all responsibility for the application of the devices characterized in this document, and notes that the application of the device must comply with the safety standards of the applicable country, and where applicable, with the relevant wiring rules.

Telit reserves the right to make modifications, additions and deletions to this document due to typographical errors, inaccurate information, or improvements to programs and/or equipment at any time and without notice. Such changes will, nevertheless be incorporated into new editions of this document.

GE863

PRO

1 Overview

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The scope of this document is the description of some hardware solutions useful for developing a product with the Telit In this document all the basic functions of a M2M device will be taken into account; for each one of them a

proper hardware solution will be suggested and eventually the wrong solutions and common errors to be avoided will be evidenced. Obviously this document cannot embrace the whole hardware solutions and products that may be designed. The wrong solutions to be avoided shall be considered as mandatory, while the suggested hardware configurations shall not be considered mandatory, instead the information given shall be used as a guide and a starting point for properly developing your product with the Telit

further hardware details that may not be explained in this document refer to the Telit GE863-PRO3 Product Description document.

(EN) The integration of the GSM/GPRS GE863-PRO3 cellular module within user application shall be done according to the design rules described in this manual.

GE863-PRO

module.

NOTICE

GE863-PRO

module. For

(IT) L’integrazione del modulo cellulare GSM/GPRS GE863-PRO3 all’interno dell’applicazione dell’utente dovrà rispettare le indicazioni progettuali descritte in questo manuale.

(DE) Die integration des GE863-PRO3 GSM/GPRS Mobilfunk-Moduls in ein Gerät muß gemäß der in diesem Dokument beschriebenen Kunstruktionsregeln erfolgen

(SL) Integracija GSM/GPRS GE863-PRO3 modula v uporabniški aplikaciji bo morala upoštevati projektna navodila, opisana v tem piročniku.

(SP) La utilización del modulo GSM/GPRS GE863-PRO3 debe ser conforme a los usos para los cuales ha sido deseñado descritos en este manual del usuario.

(FR) L’intégration du module cellulaire GSM/GPRS GE863-PRO3 dans l’application de l’utilisateur sera faite selon les règles de conception décrites dans ce manuel.

The information presented in this document is believed to be accurate and reliable. However, no responsibility is assumed by Telit Communications S.p.A. for its use, nor any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent rights of Telit Communications S.p.A. other than for circuitry embodied in Telit products. This document is subject to change without notice.

GE863-PRO3 Hardware User Guide

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2 GE863-PRO3 Mechanical Dimensions

The Telit GE863-PRO3 module overall dimension are:

• Length: 41,4 mm

• Width: 31,4 mm

• Thickness: 3,6 mm

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3 GE863-PRO3 module connections

3.1 BALL-OUT

Ball

A1 RESERVED - RESERVED (3) - - A2 A3 ANTENNA A4 RESERVED - RESERVED (3) - - A5 A6 EAR_HF+ A7 EAR_HFA8 EAR_MT+

A9 EAR_MT-

A10 TX_TRACE A11 RX_TRACE A12

B1 RESERVED - RESERVED (3) - - B2 B3 B4 B5 B6 MIC_HF+ B7

B8 MIC_MT+

B9 MIC_MTB10 B11 B12

Signal I/O Main Function Internal

Pull up

GND

GND -

GND GND GND GND -

MIC_HF-

GPIO4 /

BUZZER

STAT_LED O Status indicator led GSM CMOS 1.8V

SIMIN I/O External SIM signal - Presence (active

VBATT

- Ground - - Power

O GSM Antenna output - 50 ohm

Ground - - Power AO Handsfree ear output, phase + GSM AO Handsfree ear output, phase - GSM AO Handset earphone signal output, phase AO Handset earphone signal output, phase

TX data for Debug (1) GSM

RX data for Debug (1)

Ground - - Power

AI Handsfree microphone input; phase + GSM AI Handsfree microphone input; phase - GSM AI Handset microphone signal input;

phase+

AI Handset microphone signal input; phase-

I/O GPIO4 / BUZZER output GSM

low)

- Main GSM power supply GSM

- GSM RF

GSM GSM

GSM

47KΩ

ARM/ GSM Type

Audio Audio Audio

Audio

CMOS 2.8V CMOS 2.8V

Audio Audio

CMOS 2.8V

GSM CMOS 2.8V

Power

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I/O

Configurable general purpose I/O

nfigurable general purpose I/O

Configurable general purpose I/O

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Ball

C2 C3

C4 C125/RING

C5 C107/DSR

C6 C108/DTR

C7 C109/DCD

C8 C105/RTS

C9 C106/CTS

C10 C11 SIMRST

C12

D1 D2 D3 RESERVED - RESERVED (3) - - D4 D5

Signal I/O Main Function Internal

Pull up

VBATT

VRTC

GPIO7/

RFTXDISABLE

SIMIO

CHARGE AI Charger input GSM

VAUX1 - Power output for external accessories GSM

PB25 I/O ARM PIO Controller B pin 25 ARM CMOS 3.1V PB22

- Main GSM power supply GSM

AO VRTC Backup capacitor GSM-ARM

O Output for Ring indicator signal (RI) to

DTE

O Output for Data set ready signal (DSR)

to DTE

I Input for Data terminal ready signal

(DTR) from DTE

O Output for Data carrier detect signal

(DCD) to DTE

I Input for Request to send signal (RTS)

from DTE

O Output for Clear to send signal (CTS) to

DTE

I/O GPIO7 / RFTXDISABLE GSM

O External SIM signal – Reset GSM

I/O External SIM signal - Data I/O GSM

ARM PIO Controller B pin 22 ARM CMOS 3.1V

GSM

ARM/ GSM Type

CMOS 2.8V

1.8/3V ONLY

Power Power

Power

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D6 D7

D9 D10 D11 SIMVCC D12 SIMCLK

E3 RESERVED - RESERVED (3) - - -

E5 RESET*-GSM

E6 GPIO1 / JDR

E9 C103/TXD

PB24 I/O ARM PIO Controller B pin 24 ARM CMOS 3.1V PB23 I/O ARM PIO Controller B pin 23 ARM CMOS 3.1V

PB26 I/O ARM PIO Controller B pin 26 ARM CMOS 3.1V PB27 I/O ARM PIO Controller B pin 27 ARM CMOS 3.1V

GND -

PWRMON O Power ON Monitor GSM

ON_OFF*-GSM I Input command for switching power ON

GPIO5

GPIO3 /

RFTXMON

Ground - - Power

- External SIM signal – Power (2) GSM

O External SIM signal – Clock GSM

Ground - - Power

or OFF to GSM Engine (toggle command).

I GSM Engine Reset input

I/O GPIO1

pin / Jammer Detect Output (2)

I/O GPIO5 Co

pin GPIO3

I/O

pin /

I Serial data input (TXD) from DTE GSM

47KΩ

GSM GSM

GSM

1.8/3V ONLY

CMOS 2.8V

Pull up to VBATT

CMOS 2.8V

CMOS 2.8V CMOS 2.8V

ble general purpose I/O

Configurable general purpose I/O

al purpose I/O

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Ball

E10 C104/RXD E11 E12

F7 ON/OFF*-AP I

F10 F11 F12

G2 RESERVED - RESERVED (3) - - -

G8 RESERVED - RESERVED (3) - - -

G9 G10 G11 G12

H8 RESERVED - RESERVED (3) - - -

Signal I/O Main Function Internal

Pull up

O Serial data output to DTE GSM

PB8 I/O ARM PIO Controller B pin 8 ARM CMOS 3.1V

PB9 I/O ARM PIO Controller B pin 9 ARM CMOS 3.1V PB13 I/O ARM PIO Controller B pin 13 ARM CMOS 3.1V PC30 I/O ARM PIO Controller C pin 30 ARM CMOS 1.8V-A PC21 I/O ARM PIO Controller C pin 21 ARM CMOS 1.8V-A PC28 I/O ARM PIO Controller C pin 28 ARM CMOS 1.8V-A PC29 I/O ARM PIO Controller C pin 29 ARM CMOS 1.8V-A

NRST I RESET ARM

Input command for turning power ON or OFF to ARM Engine (active high command).

SHDN O Shutdown Control Output ARM CMOS VRTC

PB4 I/O ARM PIO Controller B pin 4 ARM CMOS 3.1V

PB5 I/O ARM PIO Controller B pin 5 ARM CMOS 3.1V

PC8 I/O ARM PIO Controller C pin 8 ARM CMOS 1.8V-A PC10 I/O ARM PIO Controller C pin 10 ARM CMOS 1.8V-A PB12 I/O ARM PIO Controller B pin 12 ARM CMOS 3.1V

PC31 I/O ARM PIO Controller C pin 31 ARM CMOS 1.8V-A

GPIO2 /

PCMCLK

GPIO8 /

PCMWAO

GPIO6 / PCMTX

GPIO9 –

PCMRX

PA5 I/O ARM PIO Controller A pin 5 ARM CMOS 3.1V

PA4 I/O ARM PIO Controller A pin 4 ARM CMOS 3.1V PB10 I/O ARM PIO Controller B pin 10 ARM CMOS 3.1V PB11 I/O ARM PIO Controller B pin 11 ARM CMOS 3.1V

PB6 I/O ARM PIO Controller B pin 6 ARM CMOS 3.1V PB29 I/O ARM PIO Controller B pin 29 ARM CMOS 3.1V

GND PB20 I/O ARM PIO Controller B pin 20 ARM CMOS 3.1V PB21 I/O ARM PIO Controller B pin 21 ARM CMOS 3.1V PB19 I/O ARM PIO Controller B pin 19 ARM CMOS 3.1V PB18 I/O ARM PIO Controller B pin 18 ARM CMOS 3.1V

I/O GPIO2 Configura

I/O GPIO8

I/O GPIO6

I/O GPIO9 Configurable gener

Ground - - Power

1 KΩ

47KΩ

4.7KΩ GSM

GSM CMOS 2.8V

ARM/ GSM Type

CMOS 2.8V

ARM CMOS 3.1V ARM

Pull up to VBATT2

GSM

CMOS 2.8V

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Ball

H9 H10 H11 H12

J1 J2 J3 RESERVED - RESERVED (3) - - J4 J5 J6 J7 J8 RESERVED - RESERVED (3) - - -

J9 J10 J11 J12

K1 K2 K3 K4 K5 K6 K7 K8

K9 K10 K11 K12

L6 JTAGSEL I JTAG ARM – JTAG Type Selection Pull Down

Signal I/O Main Function Internal

Pull up

PC18 I/O ARM PIO Controller C pin 18 ARM CMOS 1.8V-A

PB0 I/O ARM PIO Controller B pin 0 ARM CMOS 3.1V PB2 I/O ARM PIO Controller B pin 2 ARM CMOS 3.1V PB1 I/O ARM PIO Controller B pin 1 ARM CMOS 3.1V PB7 I/O ARM PIO Controller B pin 7 ARM CMOS 3.1V

PB28 I/O ARM PIO Controller B pin 28 ARM CMOS 3.1V

PB16 I/O ARM PIO Controller B pin 16 ARM CMOS 3.1V PB17 I/O ARM PIO Controller B pin 17 ARM CMOS 3.1V PC15 I/O ARM PIO Controller C pin 15 ARM CMOS 1.8V-A PC14 I/O ARM PIO Controller C pin 14 ARM CMOS 1.8V-A

PC4 I/O ARM PIO Controller C pin 4 ARM CMOS 1.8V-A

PC5 I/O ARM PIO Controller C pin 5 ARM CMOS 1.8V-A PC19 I/O ARM PIO Controller C pin 19 ARM CMOS 1.8V-A PC20 I/O ARM PIO Controller C pin 20 ARM CMOS 1.8V-A PA23 I/O ARM PIO Controller A pin 23 ARM CMOS 3.1V PA29 I/O ARM PIO Controller A pin 29 ARM CMOS 3.1V

TMS I JTAG ARM - Test Mode Select Pull Down

TCK I JTAG ARM – Test Clock ARM CMOS 3.1V

RTCK O JTAG ARM – Returned Test Clock ARM CMOS 3.1V

PA25 I/O ARM PIO Controller A pin 25 ARM CMOS 3.1V PC13 I/O ARM PIO Controller C pin 13 ARM CMOS 1.8V-A

PC6 I/O ARM PIO Controller C pin 6 ARM CMOS 1.8V-A

PC7 I/O ARM PIO Controller C pin 7 ARM CMOS 1.8V-A

PB3 I/O ARM PIO Controller B pin 3 ARM CMOS 3.1V

HDMA A USB Host Port A Data - ARM USB

HDPA A USB Host Port A Data + ARM USB

PA24 I/O ARM PIO Controller A pin 24 ARM CMOS 3.1V

OSCSEL I Slow Clock Oscillator Selection Pull Down

NTRST I JTAG ARM - Test Reset Pull Up ARM CMOS 3.1V

TDI I JTAG ARM - Test Data Input ARM CMOS 3.1V

TDO O JTAG ARM - Test Data Output ARM CMOS 3.1V

PA28 I/O ARM PIO Controller A pin 28 ARM CMOS 3.1V PA27 I/O ARM PIO Controller A pin 27 ARM CMOS 3.1V PA26 I/O ARM PIO Controller A pin 26 ARM CMOS 3.1V

ARM/ GSM Type

ARM CMOS 3.1V

ARM CMOS VRTC

ARM CMOS 3.1V

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GE863-PRO3 Hardware User Guide

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Ball

L10 L11 L12

M1 M2 M3 RESERVED - RESERVED (3) - - M4 RESERVED - RESERVED (3) - - M5 M6 M7 M8

M9 M10 M11 M12

N9 N10 RESERVED - RESERVED (3) - - N11 N12

P1 P2 P3 P4 P5 P6 P7 P8 P9

P10

Signal I/O Main Function Internal

Pull up

GND -

HDMB A USB Host Port B Data - ARM USB

HDPB A USB Host Port B Data + ARM USB

XIN32 I Slow Clock Oscillator Input ARM CMOS VRTC

XOUT32 O Slow Clock Oscillator Output ARM CMOS VRTC

PB14 I/O ARM PIO Controller B pin 14 ARM CMOS 3.1V PB15 I/O ARM PIO Controller B pin 15 ARM CMOS 3.1V PC22 I/O ARM PIO Controller C pin 22 ARM CMOS 1.8V-A

PC9 I/O ARM PIO Controller C pin 9 ARM CMOS 1.8V-A PA3 I/O ARM PIO Controller A pin 3 ARM CMOS 3.1V PA2 I/O ARM PIO Controller A pin 2 ARM CMOS 3.1V PA1 I/O ARM PIO Controller A pin 1 ARM CMOS 3.1V

PA0 I/O ARM PIO Controller A pin 0 ARM CMOS 3.1V PA11 I/O ARM PIO Controller A pin 11 ARM CMOS 3.1V PA10 I/O ARM PIO Controller A pin 10 ARM CMOS 3.1V

PA9 I/O ARM PIO Controller A pin 9 ARM CMOS 3.1V PA31 I/O ARM PIO Controller A pin 31 ARM CMOS 3.1V PA30 I/O ARM PIO Controller A pin 30 ARM CMOS 3.1V PB31 I/O ARM PIO Controller B pin 31 ARM CMOS 3.1V

GND PC16 I/O ARM PIO Controller C pin 16 ARM CMOS 1.8V-A PC17 I/O ARM PIO Controller C pin 17 ARM CMOS 1.8V-A

DDM A USB Device Port Data - ARM USB

DDP A USB Device Port Data + ARM USB

PA6 I/O ARM PIO Controller A pin 6 ARM CMOS 3.1V PA7 I/O ARM PIO Controller A pin 7 ARM CMOS 3.1V

PA8 I/O ARM PIO Controller A pin 8 ARM CMOS 3.1V PC12 I/O ARM PIO Controller C pin 12 ARM CMOS 1.8V-A PB30 I/O ARM PIO Controller B pin 30 ARM CMOS 3.1V

PC0 I/O ARM PIO Controller C pin 0 ARM CMOS 3.1V

PC1 I/O ARM PIO Controller C pin 1 ARM CMOS 3.1V

PC2 I/O ARM PIO Controller C pin 2 ARM CMOS 3.1V

PC3 I/O ARM PIO Controller C pin 3 ARM CMOS 3.1V PA22 I/O ARM PIO Controller A pin 22 ARM CMOS 3.1V

Ground - - Power

ARM/ GSM Type

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Ball

P11 3.1V_OUT OA ARM 3.1V Power Output ARM P12 VBATT2 - Main ARM Power Supply ARM Power

R1 R2 R3 R4 R5 R6 R7 R8

R9 RESERVED - RESERVED (3) - - R10 R11 R12

S1 RESERVED - RESERVED (3) - - S2 RESERVED - RESERVED (3) - - S3 S4 S5 S6 S7 S8

S9 RESERVED - RESERVED (3) - - S10 S11 RESERVED - RESERVED (3) - - S12 RESERVED - RESERVED (3) - - -

Signal I/O Main Function Internal

Pull up

GND GND -

GND PA21 I/O ARM PIO Controller A pin 21 ARM CMOS 3.1V PA18 I/O ARM PIO Controller A pin 18 ARM CMOS 3.1V PA17 I/O ARM PIO Controller A pin 17 ARM CMOS 3.1V PA19 I/O ARM PIO Controller A pin 19 ARM CMOS 3.1V PA16 I/O ARM PIO Controller A pin 16 ARM CMOS 3.1V

GND -

GND PA20 I/O ARM PIO Controller A pin 20 ARM CMOS 3.1V PA14 I/O ARM PIO Controller A pin 14 ARM CMOS 3.1V PA15 I/O ARM PIO Controller A pin 15 ARM CMOS 3.1V PA12 I/O ARM PIO Controller A pin 12 ARM CMOS 3.1V PA13 I/O ARM PIO Controller A pin 13 ARM CMOS 3.1V

GND -

Ground - - Power Ground - - Power Ground - - Power

Ground - - Power

ARM/ GSM Type

(1) For the exclusive use of the Technical Support Service (2) On this pin a maximum of 10nF bypass capacitor is allowed. (3) Reserved Pins must be left UNCONNECTED

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3.2 BALLS LAYOUT

TOP VIEW

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Connected to internal dataflash SI

3.3 ARM Port IO multiplexing

ARM PIO Controller A multiplexing

linel

PA0 SPI0_MISO MCDB0

Peripheral A Peripheral B Comments Reset State Boot State

Connected to internal dataflash

SO (1)

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I/O SPI0_MISO

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PA1 SPI0_MOSI MCCDB

PA2 SPI0_SPCK PA3 SPI0_NPCS0 MCDB3 I/O SPI0_NPCS0

PA4 RTS2 MCDB2 I/O I with Pull-up PA5 CTS2 MCDB1 I/O I with Pull-up PA6 MCDA0 I/O I with Pull-up PA7 MCCDA I/O I with Pull-up PA8 MCCK I/O I with Pull-up

PA9 MCDA1 I/O I with Pull-up PA10 PA11 PA12 PA13 PA14 PA15 PA16 PA17 PA18 PA19 PA20 PA21 PA22 PA23 PA24 PA25 PA26 PA27 PA28 PA29 PA30 PA31

MCDA2 ETX2 I/O I with Pull-up MCDA3 ETX3 I/O I with Pull-up

ETX0 I/O I with Pull-up

ETX1 I/O I with Pull-up ERX0 I/O I with Pull-up ERX1 I/O I with Pull-up

ETXEN I/O I with Pull-up ERXDV I/O I with Pull-up ERXER I/O I with Pull-up ETXCK I/O I with Pull-up

EMDC I/O I with Pull-up EMDIO I/O I with Pull-up ADTRG ETXER I/O I with Pull-up

TWD ETX2 I/O I with Pull-up

TWCK ETX3 I/O I with Pull-up

TCLK0 ERX2 I/O I with Pull-up

TIOA0 ERX3 I/O I with Pull-up

TIOA1 ERXCK I/O I with Pull-up

TIOA2 ECRS I/O I with Pull-up

SCK1 ECOL I/O I with Pull-up SCK2 RXD4 I/O I with Pull-up SCK0 TXD4 I/O I with Pull-up

Connected to internal dataflash

(1)

CLK (1)

I/O SPI0_MOSI

I/O SPI0_SPCK

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ARM PIO Controller B multiplexing

linel

PB0 SPI1_MISO TIOA3 I/O I with Pull-up PB1 SPI1_MOSI TIOB3 I/O I with Pull-up PB2 SPI1_SPCK TIOA4 I/O I with Pull-up PB3 SPI1_NPCS0 TIOA5 I/O I with Pull-up PB4 TXD0 I/O I with Pull-up PB5 RXD0 I/O I with Pull-up PB6 TXD1 TCLK1 I/O I with Pull-up PB7 RXD1 TCLK2 I/O I with Pull-up PB8 TXD2 I/O I with Pull-up

PB9 RXD2 I/O I with Pull-up PB10 PB11 PB12 PB13 PB14 PB15 PB16 PB17 PB18 PB19 PB20 PB21 PB22 PB23 PB24 PB25 PB26 PB27 PB28 PB29 PB30 PB31

Peripheral A Peripheral B Comments Reset State Boot State

TXD3 ISI_D8 I/O I with Pull-up RXD3 ISI_D9 I/O I with Pull-up TXD5 ISI_D10 I/O I with Pull-up RXD5 ISI_D11 I/O I with Pull-up

DRXD I/O I with Pull-up

DTXD I/O I with Pull-up

TK0 TCLK3 I/O I with Pull-up TF0 TCLK4 I/O I with Pull-up TD0 TIOB4 I/O I with Pull-up RD0 TIOB5 I/O I with Pull-up RK0 ISI_D0 I/O I with Pull-up

RF0 ISI_D1 I/O I with Pull-up DSR0 ISI_D2 I/O I with Pull-up DCD0 ISI_D3 I/O I with Pull-up DTR0 ISI_D4 I/O I with Pull-up

RI0 ISI_D5 I/O I with Pull-up RTS0 ISI_D6 I/O I with Pull-up CTS0 ISI_D7 I/O I with Pull-up RTS1 ISI_PCK I/O I with Pull-up CTS1 ISI_VSYNC I/O I with Pull-up PCK0 ISI_HSYNC I/O I with Pull-up PCK1 ISI_MCK I/O I with Pull-up

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GPIO that rises to keep externally

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ARM PIO Controller C multiplexing

linel

PC0 SCK3 AD0 I/O I with Pull-up PC1 PCK0 AD1 I/O I with Pull-up PC2 PCK1 AD2 I/O I with Pull-up PC3 SPI1_NPCS3 AD3 I/O I with Pull-up PC4 A23 SPI1_NPCS2 A23 I with Pull-up PC5 A24 SPI1_NPCS1 A24 I with Pull-up PC6 TIOB2 CFCE1 I/O I with Pull-up PC7 TIOB1 CFCE2 I/O I with Pull-up PC8 NCS4/CFCS0 RTS3 I/O I with Pull-up PC9 NCS5/CFCS1 TIOB0 I/O I with Pull-up

PC10 A25/CFRNW CTS3 A25 I with Pull-up

PC11

PC12 PC13 PC14 NCS3/NANDCS IRQ2 I/O I with Pull-up PC15

PC16

PC17 PC18

PC19 PC20 PC21 PC22

PC23

PC24 PC25 PC26 PC27

PC28

Peripheral A Peripheral B Comments Reset State Boot State

Connected to internal dataflash

NCS2 SPI0_NPCS1

NOT AVAILABLE on the Balls

IRQ0 NCS7 I/O I with Pull-up

FIQ NCS6 I/O I with Pull-up

NWAIT IRQ1 I/O I with Pull-up

D16 SPI0_NPCS2 I/O

D17 SPI0_NPCS3 I/O D18 SPI1_NPCS1 I/O I with Pull-up

D19 SPI1_NPCS2 I/O I with Pull-up D20 SPI1_NPCS3 I/O I with Pull-up D21 EF100 I/O I with Pull-up D22 TCLK5 I/O I with Pull-up

Enable of 6MHz internal ARM

D23

D24 NOT AVAILABLE on the Balls I/O D25 NOT AVAILABLE on the Balls I/O D26 NOT AVAILABLE on the Balls I/O D27 NOT AVAILABLE on the Balls I/O -

D28 I/O I with Pull-up

Oscillator (active High)

NOT AVAILABLE on the Balls

CS line

I/O SPI0_NPCS1

I/O O HIGH

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SPI0_NPCS2

with pull-up

SPI0_NPCS3

with pull-up

PC29 PC30

PC31

D29 D30 I/O I with Pull-up

D31 I/O I with Pull-up

ARM alive

I/O O HIGH

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TIP: For further documentation on ARM processor refer to ATMEL AT91SAM9260 datasheet

4 Hardware Commands

4.1 Turning ON the GE863-PRO3 GSM Engine

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To turn on the GE863-PRO3 GSM/GPRS engine the pad second and then released. The maximum current that can be drained from the A simple circuit to do it is:

Power ON impulse

ON_OFF*-GSM

pad is 0,1 mA.

GND

must be tied low for at least 1

ON#

NOTE: don't use any pull up resistor on the ON# line, it is internally pulled up. Using pull up resistor may bring to latch up problems on the GE863-PRO3 power regulator and improper power on/off of the module. The line ON# must be connected only in open collector configuration.

NOTE: In this document all the lines that are inverted, hence have active low signals are labeled with a name that ends with a "*" or with a bar over the name.

NOTE: The GE863-PRO3 turns fully on also by supplying power to the Charge pad (Module provided with a battery on the VBATT pads).

TIP: To check if the device has powered on, the hardware line PWRMON should be monitored. After 900ms the line raised up the device could be considered powered on.

PWRMON line rises up also when supplying power to the Charge pad

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For example: 1- Let's assume you need to drive the ON_OFF*-GSM pad with a totem pole output of a +3/5 V microcontroller (uP_OUT1):

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10k

2- Let's assume you need to drive the ON_OFF*-GSM pad directly with an ON/OFF button:

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4.2 Turning OFF the GE863-PRO3 GSM Engine

The turning off of the device can be done in two ways:

• by software command (see GE863- GE863-PRO

• by hardware shutdown

When the device is shut down by software command or by hardware shutdown, it issues to the network a detach request that informs the network that the device will not be reachable any more.

4.2.1 Hardware shutdown

To turn OFF the GE863-PRO3 the pad ON_OFF*-GSM must be tied low for at least 1 second and then released.

The same circuitry and timing for the power on shall be used. The device shuts down after the release of the ON_OFF*-GSM pad.

TIP: To check if the device has powered off, the hardware line PWRMON should be monitored. When

PWRMON goes low, the device has powered off.

Software User Guide)

4.3 Hardware Unconditional Reboot of GSM Engine

To unconditionally Reboot the GE863-PRO3 , the pad RESET*-GSM must be tied low for at least 200 milliseconds and then released. The maximum current that can be drained from the RESET*-GSM pad is 0,15 mA. A simple circuit to do it is:

Unconditional Reboot impulse

RESET*-GSM

GND

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NOTE: don't use any pull up resistor on the RESET*-GSM line nor any totem pole digital output. Using pull up resistor may bring to latch up problems on the GE863-PRO3 power regulator and improper functioning of the module. The line RESET*-GSM must be connected only in open collector configuration.

TIP: The unconditional hardware reboot should be always implemented on the boards and software should use it as an emergency exit procedure.

For example: 1- Let's assume you need to drive the RESET*-GSM ( RESET ) pad with a totem pole output of a +3/5 V microcontroller (uP_OUT2):

10k

4.4 Turning ON/OFF the GE863-PRO3 ARM

To turn on the GE863-PRO3 ARM the pad raised ( released ) the ARM will shutdown. The maximum current that can be drained from the

A simple circuit to do it is:

ON_OFF*-ARM

must be tied low and kept low, when pin is

pad is 0,1 mA.

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Power ON/OFF

ON/OFF*-ARM#

GND

NOTE: don't use any pull up resistor on the ON/OFF*ARM line, it is internally pulled up to VBATT2. Using pull up resistor may bring to latch up problems on the GE863-PRO3 power regulator and improper power

on/off of the module. The line ON/OFF*-ARM must be connected only in open collector configuration or tied to ground (if ARM needs to stay always on).

NOTE: In this document all the lines that are inverted, hence have active low signals are labeled with a name that ends with a "*" or with a bar over the name.

TIP: To check if the device has powered on, the hardware line 3.1V_OUT can be monitored.

It is possible to use also the SHDN line to turn ON the device with the ARM RTC trigger by connecting it to the ON/OFF*-ARM pin through a transistor buffer. After the Initial bootstrap, the line PC29 goes HIGH allowing the device to keep itself on; If you need a toggle command to turn on/off the device, then you can use the line PC29 to keep the ARM on after it’s start-up and connect the on/off button to the ON/OFF*ARM pin through a buffer transistor while connecting it to a GPIO to sense it’s toggling (e.g. PC31) for shutting down the ARM by lowering the PC29 pin.

TIP: To Keep the ARM ON you can use the PC29 pin that goes high right after the bootstrap

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5 Power Supply

The power supply circuitry and board layout are a very important part in the full product design and they strongly reflect on the product overall performances, hence read carefully the requirements and the guidelines that will follow for a proper design.

In the GE863-PRO3 the power supply inputs of the GSM engine and the ARM processor part have been kept separate, VBATT is the input for the GSM part, VBATT2 is the input for ARM. It is possible to connect together the two power inputs since they have compatible ranges, but if it is desired the two power supplies can be kept separate. The only power supply in common between the ARM and GSM engine is the RTC voltage which is generated by the GSM engine from VBATT power source and supplies both the GSM RTC and the ARM VDDBU part including the shutdown controller, rtc, 32 KHz oscillator. For this reason if it is planned to remove VBATT power supply, then a backup battery shall be provided on VTRC pin that guarantees that VRTC is still available.

NOTE: if you plan to remove VBATT power source, then you must provide an appropriate backup battery/capacitor on the VRTC pin in order to be able to turn on properly the ARM part when supplying VBATT2 only power pin.

5.1 GSM Power Supply Requirements

POWER SUPPLY

Nominal Supply Voltage 3.8 V Max Supply Voltage 4.2 V Supply voltage range 3.4 V - 4.2 V

GE863-PRO3 GSM Engine

Mode Average (mA) Mode description

IDLE mode

AT+CFUN=1 24,0 Normal mode: full functionality of the module AT+CFUN=4 22,0 Disabled TX and RX; module is not registered on the network

Power saving: CFUN=0 module registered on the network and can

receive voice call or an SMS; but it is not possible to send AT

AT+CFUN=0 or

AT+CFUN=5

RX mode

1 slot in downlink 53,0 2 slot in downlink 66,0 3 slot in downlink 79,0 4 slot in downlink 89,0

7,20 / 3,561

commands; module wakes up with an unsolicited code (call or

SMS) or rising RTS line. CFUN=5 full functionality with power

saving; module registered on the network can receive incoming

Worst/best case depends on network configuration and is not under module control

Stand by mode; no call in progress

calls and SMS

GSM Receiving data mode

GE863-PRO3 Hardware User Guide

GSM TX and RX mode

Min power level 78,0

Max power level 200,0

GPRS (class 10) TX and RX mode

Min power level 124,0

Max power level 371,0

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GSM Sending data mode

GPRS Sending data mode

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The GSM system is made in a way that the RF transmission is not continuous, else it is packed into bursts at a base frequency of about 216 Hz, the relative current peaks can be as high as about 2A. Therefore the power supply has to be designed in order to withstand with these current peaks without big voltage drops; this means that both the electrical design and the board layout must be designed for this current flow. If the layout of the PCB is not well designed a strong noise floor is generated on the ground and the supply; this will reflect on all the audio paths producing an audible annoying noise at 216 Hz; if the voltage drop during the peak current absorption is too much, then the device may even shutdown as a consequence of the supply voltage drop.

TIP: The electrical design for the Power supply should be made ensuring it will be capable of a peak current output of at least 2 A.

5.2 ARM Power Supply Requirements

POWER SUPPLY

Nominal Supply Voltage 3.8 V Operating Supply voltage range 3.4 V - 4.2 V Absolute Maximum voltage range 3.30 – 4.5 V

GE863-PRO3

Mode Typical Average (mA) Mode description

Off < 2 µA (TBD)

Full Speed 140 (TBD)

Slow Clocking 1 (TBD) ARM is running on slow clock with peripherals disabled

ARM is operational at full speed 200MHz CPU Clock , Main Clock

100 MHz and all peripherals active

5.3 VRTC Backup supply

The RTC of the GPRS Engine and the RTC & Shutdown controller of the ARM part are supplied by VRTC. This voltage supply is generated by a low quiescent current regulator inside the module that takes its power from VBATT pins. Since this voltage supply is needed to correctly boot the ARM part, if it is planned to remove the VBATT supply and still turn on the ARM part supplied by VBATT2, then an appropriate power supply must be provided to the VRTC pin.

To obtain several working years for the Real Time Clock of the GPRS engine and the RTC, 32KHz oscillator & Shutdown controller of the ARM part without VBATT power supply voltage, it is needed to make use of a lithium primary battery to supply the RTC circuits in the Telit Module.

The operative voltage for VRTC is lower than the voltage of primary lithium battery (3V nominal). It is therefore necessary to put a LDO voltage regulator in the circuit.

GE863

PRO

ΩΩΩΩ

1µ

1µ1µ

1µ

µΑ

µΑµΑ

µΑ

1µ

1µ1µ

1µ

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The suggested circuit is:

VRTC

10K

3V Lithium primary battery

ceramic

S-817A19A Seiko

1.2

ceramic

The quoted current intensity are without VBATT power supply for the module. The S-817A19A Seiko LDO has a value of 1.2µµµµA Typ for the quiescent current. Without VBATT power supply voltage, the VRTC Reverse Current is 7- 8 µµµµA Typ. (depending on OSCSEL pin status) At ambient temperature 20°C, the BR2032 coin type ( Panasonic 190 mAh) should be sufficient for 2-3 years with typical current intensity. The CR2032 coin type Panasonic 220 mAh) has an improved behaviour at low and high temperatures. When the VBATT voltage is present, the VRTC voltage exceeds the S-817 output voltage, so the current from the Lithium Primary Battery is only 1.2µµµµA Typ (or less).

NOTE: the 2-3 years are given considering the worst case (VBATT always off)

5.4 General Design Rules

The principal guidelines for the Power Supply Design embrace three different design steps:

• the electrical design

• the thermal design.

• the PCB layout.

5.4.1 Electrical design Guidelines

The electrical design of the power supply depends strongly from the power source where this power is drained. We will distinguish them into three categories:

• +5V input (typically PC internal regulator output)

• +12V input (typically automotive)

• Battery

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5.4.1.1 + 5V input Source Power Supply Design Guidelines

• The desired output for the power supply is 3.8V, hence there's not a big difference between the input source and the desired output and a linear regulator can be used. A switching power supply will not be suited because of the low drop out requirements.

• When using a linear regulator, a proper heat sink shall be provided in order to dissipate the power generated.

• A Bypass low ESR capacitor of adequate capacity must be provided in order to cut the current absorption peaks close to the GE863-PRO3 , a 100µF tantalum capacitor is usually suited.

• Make sure the low ESR capacitor on the power supply output (usually a tantalum one) is rated at least 10V.

• A protection diode should be inserted close to the power input, in order to save the GE863-PRO3 from power polarity inversion.

An example of linear regulator with 5V input is:

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5.4.1.2 + 12V input Source Power Supply Design Guidelines

• The desired output for the power supply is 3.8V, hence due to the big difference between the input source and the desired output, a linear regulator is not suited and shall not be used. A switching power supply will be preferable because of its better efficiency especially with the 2A peak current load represented by the GE863-PRO3.

• When using a switching regulator, a 500kHz or more switching frequency regulator is preferable because of its smaller inductor size and its faster transient response. This allows the regulator to respond quickly to the current peaks absorption.

• For car PB battery the input voltage can rise up to 15,8V and this should be kept in mind when choosing components: all components in the power supply must withstand this voltage.

• A Bypass low ESR capacitor of adequate capacity must be provided in order to cut the current absorption peaks, a 100µF tantalum capacitor is usually suited.

• Make sure the low ESR capacitor on the power supply output (usually a tantalum one) is rated at least 10V.

• For Car applications a spike protection diode should be inserted close to the power input, in order to clean the supply from spikes.

• A protection diode should be inserted close to the power input, in order to save the GE863-PRO3 from power polarity inversion. This can be the same diode as for spike protection.

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An example of switching regulator with 12V input is in the below schematic (it is split in 2 parts):

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Telit Communications S p A 863P3 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual