3.4.2 Turning the Unit On/Off Using the AUDIO_OUT_ONOFF Pin................18 3.4.3 Turning the Unit On Using the Ignition Pin ......................20 3.5 SLEEP MODE OPTIONS ..............................20 3.5.1 c18 Awakens the DTE from Sleep Mode ......................... 20 3.5.2 c18 Exiting from Sleep Mode........................... 21 3.6 INTERFACES..................................21 3.6.1 Interface Connectors..............................
B.5 C18, G18 AND G20 PINOUT LOCATIONS........................62 HARDWARE REQUIREMENTS FOR CDG2 AND FIELD TESTING C.1 OVERVIEW ..................................65 C.2 C18 MODELS WITH 36-PIN OR 70-PIN INTERFACE CONNECTORS ............... 65 C.3 C18 MODELS WITH A 28-PIN INTERFACE CONNECTOR..................66 INDEX...
Figure 6. Powering On the c18 Power Using the AUDIO_OUT_ONOFF Pin ................. 19 Figure 7. Powering Off the c18 Using the AUDIO_OUT_ONOFF Pin..................19 Figure 8. Waking Up the DTE when the c18 Should Send Data ....................21 Figure 9. c18 Pinout – Top View ............................... 21 Figure 10.
You can reach us by email at: firstname.lastname@example.org. WHO SHOULD USE THIS MANUAL This manual is intended for all members of the DTE integration team who are responsible for integrating the c18 module into the host device, including representatives from hardware, software and RF engineering disciplines.
The c18 modem relies on system software for basic operational instructions and on configuration parameter values to meet modem and network interface requirements. The c18 is designed for use in a system environment comprising a CDMA/Amps mobile radio network with one or more radio operators per country.
Enhanced Variable Rate CODEC Gigahertz Electrical ground GPIO General Purpose Input Output Kilohertz Low-pass filter Milliampere Megahertz Motorola Serial Number Not applicable Not connected Power amplifier Personal Communications System PCS band; also known as CDMA 1900 Pull-down resistor Pull-up resistor Radio frequency...
Introduction PRODUCT SPECIFICATIONS Table 2. Product Specifications Product Features Operating systems: • CDMA 1X 800/1900 MHz • AMPS 800 MHz • aGPS Data Features CDMA1X high-speed data: Max BR 153.6 Kbps CSD: Max BR 14.4 Kbps CDMA data: • IS707: Max BR 14.4 Kbps •...
• 96 x 64 pixels • EL backlighting • Monochrome display External keypad support SAR rating: c18 has a SAR mobile exclusion statement Interfaces Connectors: • 70-pin, 0.5mm pitch (same as for g20) • 36-pin ZIF (same as for g18) •...
Wakeup out Other Features TTY connectivity Phone and date book Over-the-air activation AT Command Set IS 707A AT commands Motorola proprietary AT commands Accessories Firmware data loader Data logger Developer’s Kit Specifications are subject to change without prior notice. Note * Specifies goals and not minimum values.
MODELS DESCRIPTION Motorola offers the c18 in several models. The full functionality and variety of user interfaces for the c18a1 model is described in this section. Other models are derivatives of the c18a1 full-functionality model for bands or connectors that are not applicable.
Part 22 and Part 24. This includes Electromagnetic Energy Exposure (EME) testing. As the c18 modem is not a standalone trans- ceiver but is an integrated module, the c18 cannot be tested by itself for EME certification. It is, however, the integrator’s respon- sibility to have the completed device tested for EME certification.
Introduction Systems using the c18 are subject to mandatory EMC testing under directive 89/336/EEC. Other directives, such as the LVD directive 73/23/EE, may also apply to a system using the c18 module. SAFETY PRECAUTIONS c18 modules are not ESD protected. ESD preventive measures must be taken when handling the modules.
Figure 3. c18 Block Diagram The c18 is a cellular radio based on the Qualcomm MSM5100 chipset. The call-processing protocol and the voice DSP are located within the Baseband block. The RF block transmitter and receiver support 800/1900MHz CDMA and 800MHz AMPS.
• Cellular antenna connector for 800/1900 MHz and passive aGPS • GPS antenna connector that supports an aGPS active antenna 3.1.2 RF Block This section describes the c18 RF block. Figure 4 shows the RF block diagram: Active GPS Ant (alt) IFR3300...
Hardware Description 220.127.116.11 Frequency Generation There are three RF frequencies generated to enable frequency conversions within the radio: • Front-end-down and Front-end-up Conversion LO Frequency: The frequency plan is designed so that the Rx front-end-down conversion LO and the Tx front-end-up conversion LO are the same frequency, which is generated in the dual synthesizer IC.
(models with a 70-pin or 36-pin interface connector), or via two VCC and two GND pins (models with a 28-pin connector). The source voltage must be between 3.6 V DC and 4.5 V DC (4.0 V nominal) on the c18 interface connector pins (across the VCC and GND pins).
In order to correctly design the power supply or battery for the c18, integrators should take into account the current consumption of the c18 in its various operating modes. The c18 is a CDMA phone that transmits in continuous mode. Table 6 lists the maximum current for each mode supported by the c18 module.
Turning the Unit On/Off Using the AUDIO_OUT_ONOFF Pin The c18 module can be turned on or off using the AUDIO_OUT_ONOFF line (pin #53 on the 70-pin connector, pin #14 on the 36-pin ZIF connector and pin #17 on the 28-pin DIN connector). The AUDIO_OUT_ONOFF line has dual functions, as follows: •...
Hardware Description The timing for these processes is shown in Figure 6 and Figure 7 below. Figure 6. Powering On the c18 Power Using the AUDIO_OUT_ONOFF Pin Figure 7. Powering Off the c18 Using the AUDIO_OUT_ONOFF Pin 98-08901C63-A...
Note The Ignition line is used to turn on the c18 unit, and is primarily used for units connected to a mobile device, where current consumption is not a major concern. When the Ignition line rises, the unit turns on. The Ignition line is also used to turn the unit on when power is connected to the unit (for example, the Ignition line in a car kit).
3.5.2 c18 Exiting from Sleep Mode When the c18 senses communication activity on its Rx data line, it exits Sleep mode. Entering Sleep mode again depends on the activity of the network and the activity of the RS232 lines. INTERFACES c18 modules have one or two female MMCX RF connectors (J30 and J31) and an external interface connector.
Figure 10. c18 Pinout – Bottom View For the connector pin assignments, see “Connector Pin Assignments” on page 39. 3.6.1 Interface Connectors Table 8 summarizes the interfaces and features supported by the c18 module. Table 8. c18 Interface Connectors Connector Type Interface/Function...
Hardware Description Table 8. c18 Interface Connectors (Continued) Connector Type Interface/Function Remarks 28-pin 36-pin 70-pin √ Handset audio – – √ Headset audio – – √ Wake In – – √ Wake Out – – √ √ Wakeup – Bi-directional.
Figure 11. UART1 Interface UART signals are low CMOS-level signals (0 to 2.8 V) that can be connected directly to the host UART. c18 input signals (such as TXD, RTS and DTR signals) are buffered, making them capable of receiving signal levels up to 5.0 V. Signals are referenced to the GND.
RS232 transceiver. In order to configure the c18 to communicate through UART1, RS232 mode or RS232 + USB mode should be selected by setting the configuration pins (OPT1, OPT2, AUDIO_IN and USB_VBUS). See “c18 OPERATING MODES” on page 17.
Removable-User Identity Module (R-UIM) Interface The c18 has optional internal and external R-UIM interfaces. Two R-UIM signals (UIM DATA and UIM CLK) are shared with UART2 signals (RXD and CTS). For this reason, only one of these interfaces can be used at a time. The interface supports 3V cards.
UIM_PWR (UIM_VPP) Programming voltage It is recommended that the total trace length between the board-to-board connector pins on the c18 and the pins of the external card holder not exceed 100 mm. Before removing the SIM card or inserting a new one, ensure that the c18 module has been powered down. (See “Turning the Unit On/Off”...
These interfaces are internally muxed. Therefore, only one interface can be active at a time. The hands-free (auxiliary audio) interface is available for all three types of interface connectors. The handset and headset interfaces are supported only on c18 models that use the 70-pin connector.
3.7.1 Handset Interface This differential interface is intended for handset-like applications. The c18 module contains all biasing circuitry. Therefore, no external components are needed, except for an active condenser microphone and a 32Ω earpiece. Figure 14 shows the handset interface with biasing circuitry:...
An optional (normally closed) switch can be used for answering/ending (SEND/END) an incoming call from the headset. The c18 monitors the HEADSET_MIC signal DC level, in order to define the state of the SEND/END switch. Be sure to pull down the microphone input when the headset is unplugged from the c18.
Figure 16. Hands-free Audio Connectivity 3.7.4 Analog Ground For optimal audio performance, all audio circuits external to the c18 should be referenced to the Analog Ground (AGND) pin. The connection between AGND and GND is implemented inside the c18 module. Customer Side...
Hardware Description 3.7.5 Digital Audio Interface Digital audio signals can be used as general-purpose I/Os when the digital audio interface is not needed. Table 12 lists the c18 digital audio interface signals. Table 12. Digital Audio Interface Signals 70-pin Connector...
Hardware Description Antenna Connector M7000 R-UIM Connector 36-pin ZIF Connector 28-pin DIN Connector 25 27 Cellular Bands Antenna 26 28 Connector Figure 18. Antenna Connectors 18.104.22.168 Cellular Bands Antenna Connector J31 covers two cellular bands, 800 MHz and 1900 MHz, as well as the GPS band, 1575 MHz, for passive aGPS. 22.214.171.124 GPS Antenna Connector J30 is a GPS connector that provides the RF connection to the GPS receiver, as well as a user-defined DC voltage for an active...
The KEYB_DRV output is intended to be a driver for backlight LEDs in handset-like applications. KEYB_DRV is an open drain output used to sink the current. Therefore, the backlight LEDs’ anode should be tied to VCC and the cathode to the c18 KEYB_DRV pin.
BL_SINK The c18 BL_SINK output is an open drain current sink. Therefore, the LEDs’ anode must be tied to VCC and the cathode to the c18 BL_SINK pin. The programmable current sink operates between 0 mA and 40 mA in 16 steps through the SBI register DRV_LCDSEL.
General-purpose A/D Converter - GPADC The c18 has two general-purpose ADC inputs, ADC1 and ADC2. The GPADC is located in the MSM5100 block. It is intended to digitize DC signals corresponding to analog parameters, such as battery voltage and temperature.
CONNECTOR PIN ASSIGNMENTS 70-PIN CONNECTOR PINOUT Table 16 shows the pin assignments for c18 models using a 70-pin interface connector. The legend below applies to this table. Legend: PU: Contains an internal pull-up resistor. PD: Contains an internal pull-down resistor.
PCM_FS_GPIO4 I/O – PU pull-up. Reset out (from MSM5100). Some RESOUT_N devices external to the c18 may require a reset signal (for example, an LCD). Signal used to wake up the external WAKE_OUT_N O – PD equipment (for example, a terminal).
Connector Pin Assignments Table 16. 70-pin Connector Pinout (Continued) Pin # Signal Name Signal Level [V] Description 5V tolerant (from OEM to PC). Should UART2_RTS I – (PD) be pulled down externally (100 K) when not used. Active-low, level-sensitive interrupt KEYSENSE2_N I –...
Connector Pin Assignments Table 16. 70-pin Connector Pinout (Continued) Pin # Signal Name Signal Level [V] Description EL lamp driver control signal (turns EL LCD_EL_EN lamp on or off and controls its intensity). UIM_CR_DET I – PU UIM sense detection. IGNITION Ignition.
All UART names are referenced to PC, as the c18 is a DCE device. Note 36-PIN ZIF INTERFACE CONNECTOR Table 17 shows the pin assignments for c18 models using a 36-pin ZIF interface connector Table 17. 36-pin ZIF Connector Pinout Pin #...
Connector Pin Assignments Table 17. 36-pin ZIF Connector Pinout (Continued) Pin # Signal Name Signal Level [V] Description WAKE_UP UIM_CR_DET UIM card sense detection. UIM_PWR_PH UIM_PWR. UIM_RESET UIM_RESET. UART2 RXD (from OEM to PC) or UART2_RXD_UIM_DATA O or I/O UIM_DATA_I/O. A software-defined pin. UART2_CTS_UIM_CLK UART2 CTS or UIM_CLK.
All UART names are references to PC, as the c18 is a DCE device. Note 28-PIN DIN INTERFACE CONNECTOR Table 18 shows the pin assignments for c18 models using a 28-pin DIN interface connector. Table 18. 28-pin DIN Connector Pinout 28-pin...
All UART names are referenced to PC, as the c18 is a DCE device. Note Odd/even pin number assignments are flipped between the c18 and the g18, but the physical locations of the func- tions are identical on the connector. For more details, see “Pinout Comparisons” on page 55.
Figure 26. c18c Side View ASSEMBLY PRECAUTIONS The following precautions should be observed when handling c18 modules, assembling them onto the host design, or attaching/ detaching the RF cable: • Handle with care in order to avoid scratches and bending of shields.
• Track number • Kit number • Model number This information can be obtained from the c18 labels located on the top and bottom of each module, as shown in Figure 27 and Figure 28 below. Track number Kit Number Figure 27.
SUGGESTED CONNECTORS SUGGESTED MATING CONNECTORS Table 19 in this appendix provides a list of the suggested mating connectors for use on the c18. Table 19. c18 Suggested Mating Connectors Mating Part Motorola Manufacturer Mating Part Manufacturer (Motorola Connector Part Part...
OVERVIEW The tables in this appendix contain pin-to-pin comparisons for different c18 interface connectors, and their g18 and g20 equivalents. All tables are color-coded to denote the level of compatibility for each of the pins. The legend below applies to all tables in this appendix.
* UART names are referenced to PC, as the c18 is a DCE device. Odd/even pin number assignments are flipped between the c18 and the g18, but the physical locations of the functions are identical on the connector. See “c18, g18 AND g20 PINOUT LOCATIONS” on page 62 for more details.
Pinout Comparisons c18/g18 36-PIN CONNECTOR COMPARISON Table 21. c18/g18 36-pin Connector Comparison Pin # c18 Signal Name* g18 Signal Name c18 Signal Description USB_VBUS TX ENABLE USB Power; 5.0V nominal. USB_D+ RXD UART2 USB D+ signal. USB_D- TXD UART2 USB D- signal.
GPS_ANT_PWR GPS Antenna PWR (3/5 V) External power for active GPS antenna. GPIO5 RX for differential GPS RTCM MSM5100 GPIO_INT30. GPIO9 GPS 1PPS MSM5100 GPIO_INT26. * UART names are referenced to PC, as the c18 is a DCE device. 98-08901C63-A...
Pinout Comparisons c18/g20 70-PIN CONNECTOR COMPARISON Table 22. c18/g20 70-pin Connector Comparison Pin # c18 Signal Name g20 Signal Name Remarks UART1_RTS RTS_N USB_DET is actually USB_VBUS on g20 USB_VBUS USB_DET models with an integrated transceiver. UART1_RXD RXD_N N.C. is actually USB_D+ on g20 models USB_D+ N.C.
Pinout Comparisons Table 22. c18/g20 70-pin Connector Comparison (Continued) Pin # c18 Signal Name g20 Signal Name Remarks UART1_RI RI_N PCM_FS_GPIO4 PCM_FS RESOUT_N RESET_N WAKE_OUT_N WAKEUP_OUT_N BL_SINK BL_SINK Different current sink capability. Keypad signals-compatible, but character KEYSENSE0_N KBC1_N map tables are different.
Signal Name Remarks UIM_RESET SIM_RST_N ADC1 CHRG_TYP UART2_CTS_UIM_CLK SIM_CLK ADC2 THERM UIM_PWR_PH SIM_VCC c18 (3 V only); g20 (3 V/1.8 V). LCD_EL_EN GPRS_DET_N UIM_CR_DET SIM_PD IGNITION UART2_RXD_UIM_DATA SIM_DIO In c18, this line serves as auxiliary audio AUDIO_OUT_ONOFF ON_OFF_N out too.
SPI_DOUT EARPIECE+ SPKR_P KEYB_DRV SPI_CS c18, g18 AND g20 PINOUT LOCATIONS Figure 29 and Figure 30 show the top and bottom view of the c18 module, respectively, with their pin locations. Antenna Connector M7000 R-UIM Connector 36-pin ZIF Connector 28-pin DIN Connector...
USB+RS232 mode. c18 MODELS WITH 36-PIN OR 70-PIN INTERFACE CONNECTORS In c18 models with 70-pin or 36-pin interface connectors, all pins are available on the interface connector. Integrators should prepare test points or test connectors for the following pins: For Mode Configuration: Ω...
• OPT1: A 10kΩ pull-down resistor (R6203) on the c18 must be removed when using USB+RS232 mode. The location of the R6203 resistor is shown in Figure 33. R6203 is not installed on c18 models that are not hardware configured for RS232 mode.
Hardware Requirements for CDG2 and Field Testing R6203 must be put back in place if RS232 mode is to be used. Note For Communication With The Logger: • USB_D+ • USB_D- The suggested configuration is shown in Figure 34. CUSTOMER HOST DESIGN PLACE FOR CDG2 or FIELD TESTING 0Ω...
• Solder two 0402 size 0Ω chip resistors (R6801 and R6802) on the c18, at the places shown in Figure 35 below. • Solder a wire from the USB_VBUS PAD (J10, pin #1) to the VBUS test point shown in Figure 34.
(such as AUDIO_IN, which is available for the 28-pin connector), or directly on the c18 (using the USB_D+, USB D- and USB_VBUS pins). The location of relevant access points on the c18 is shown in Figure 36.
Hardware Requirements for CDG2 and Field Testing 98-08901C63-A...