Applicant: Motorola, INC |
FCC ID: IHDP56JE1 |
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C24 Hardware Interface Manual |
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Version 0.3 |
C24
Hardware Interface Manual
C24 CDMA 1X Module
Nov 14, 2008
Version 0.3
Applicant: Motorola, INC |
FCC ID: IHDP56JE1 |
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C24 Hardware Interface Manual |
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Version 0.3 |
Table of Contents
REVISION HISTORY .................................................................................................................................... |
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1 |
REGULATORY REQUIREMENT........................................................................................................... |
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1.1 |
SAFETY STATEMENT AND REQUIREMENTS .............................................................................................. |
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1.2 |
ANTENNA AND TRANSMISSION SAFETY PRECAUTIONS............................................................................. |
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2 |
HARDWARE INTERFACE DESCRIPTION ........................................................................................... |
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2.1 |
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OPERATING MODES ............................................................................................................................... |
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2.2 |
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POWER SUPPLY..................................................................................................................................... |
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2.2.1 |
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POWER CONSUMPTION........................................................................................................................ |
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2.3 |
POWER ON/OFF OPERATION .................................................................................................................. |
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2.3.1 TURNING THE MODULE ON ................................................................................................................... |
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2.3.2 TURNING THE MODULE OFF............................................................................................................... |
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2.4 |
LOW POWER MODE ............................................................................................................................. |
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2.4.1 ACTIVATING LOW POWER MODE ........................................................................................................ |
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2.4.2 SERIAL INTERFACE DURING LOW POWER MODE ................................................................................. |
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2.4.3 TERMINATING LOW POWER MODE ....................................................................................................... |
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2.5 |
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REAL TIME CLOCK............................................................................................................................... |
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2.6 |
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SERIAL INTERFACES ............................................................................................................................ |
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2.6.1 PRIMARY UART (UART1)................................................................................................................. |
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2.6.2 |
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SECONDARY UART (UART2) ........................................................................................................... |
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2.6.3 |
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USB INTERFACE ............................................................................................................................... |
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2.7 |
REMOVABLE-USER IDENTIFY MODULE (R-UIM) INTERFACE................................................................... |
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2.8 |
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AUDIO INTERFACE................................................................................................................................ |
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2.8.1 HANDSET MICROPHONE PORT ........................................................................................................... |
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2.8.2 HEADSET MICROPHONE PORT ........................................................................................................... |
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2.8.3 |
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SPEAKER PORT................................................................................................................................. |
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2.8.4 |
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HEADSET DETECTION........................................................................................................................ |
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2.8.5 |
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ALERT LOUDSPEAKER PORT .............................................................................................................. |
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2.8.6 |
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DIGITAL AUDIO INTERFACE ................................................................................................................ |
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2.8.7 AUDIO OPERATING MODES ................................................................................................................ |
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2.8.8 AUDIO PROGRAMMING INTERFACE ..................................................................................................... |
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2.9 |
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A/D INTERFACE ................................................................................................................................... |
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2.9.1 |
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POWER SUPPLY A/D ......................................................................................................................... |
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2.9.2 |
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BATTERY TEMPERATURE A/D ............................................................................................................ |
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2.9.3 |
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GENERAL PURPOSE A/D ................................................................................................................... |
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2.10 CONTROL AND INDICATORS INTERFACE .............................................................................................. |
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2.10.1 |
RESET............................................................................................................................................ |
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2.10.2 VREF REFERENCE REGULATOR...................................................................................................... |
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2.10.3 |
WAKE-UP OUT................................................................................................................................ |
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2.10.4 |
ANTENNA DETECTION...................................................................................................................... |
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2.10.5 |
CDMA NW DETECTION .................................................................................................................. |
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2.10.6 |
TRANSMISSION INDICATOR............................................................................................................... |
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2.10.7 |
GENERAL PURPOSE I/O .................................................................................................................. |
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2.11 |
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ANTENNA INTERFACE......................................................................................................................... |
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Motorola General Business Use
Page 2 of 36
Applicant: Motorola, INC |
FCC ID: IHDP56JE1 |
|
C24 Hardware Interface Manual |
|
Version 0.3 |
Revision History
Version |
Date |
Author |
0.01 |
17-Oct-07 |
Carlos Dyk, |
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Initial Draft |
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0.02 |
25-Dec-07 |
Nimrod Zarmi |
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Parameters spec updated, Audio updated |
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0.03 |
21-Feb-08 |
David Alfi |
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Updating following fianl review |
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0.1 |
5-Oct-08 |
Nimrod Zarmi |
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Updating Regulatory approvals requirements |
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0.2 |
11-Nov-08 |
Udi Hadar |
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Update max output power to 25dBm |
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Update VSWR to 2.5:1 |
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0.3 |
14-Nov-08 |
Steve Gump |
Update maximum allowable gain at 1900 MHz to maximum of 4.2 dBi
Motorola General Business Use
Page 3 of 36
Applicant: Motorola, INC |
FCC ID: IHDP56JE1 |
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C24 Hardware Interface Manual |
|
Version 0.3 |
1 Regulatory Requirement
The C24 module is compliant with applicable FCC and IC requirements.
The integrated system incorporating the C24 module may be subject to further regulations and standards. Motorola strongly recommends that the system integrator seeks professional advice regarding the regulations and standards that apply to their product. The Federal Communications Commission (FCC) requires application for certification of digital devices in accordance with CFR Title 47, Part 2 and Part 15. This includes Electromagnetic
Energy Exposure (EME) testing. As the C24 modem is not a standalone transceiver but is an integrated module, the C24 cannot be tested by itself for EME certification. It is, however, the integrator’s responsibility to have the completed device tested for EME certification.
The C24 module is compliant to FCC and IC requirements allowing use within North America. Use in other regions may require regional "type approvals" which the manufacturer of the final product integration or reseller will be responsible for procuring. Many regional type approvals are based upon compliance to FCC and other standards that the C24 is compliant with. It is strongly recommended that professional advice be sought before placing the finished integrated product on the market to establish local approval and marking requirements.
1.1Safety Statement and Requirements
Certain safety precautions must be observed during all phases of the operation, usage, service or repair of any cellular terminal or mobile incorporating the C24 module. The integrator is advised to consider the following general cautions in the context of their integrated system incorporating the C24 module, and to provide the end user with the applicable warnings and advice of safe operation of the equipment. Failure to comply with these precautions violates safety standards of design, manufacture and intended use of the product. Motorola assumes no liability for customer failure to comply with these precautions.
•The C24 must be operated at the voltages described in the technical documentation
•The C24 must not be mechanically nor electrically changed. Use of connectors should follow the guidance of the technical documentation
•The integrated product incorporating the C24 moduel must be evaluated for SAR under intended use conditions, and suitable text and SAR values be provided to the end user
•No wireless device can guarantee operation at all times due to network or interference conditions, A user should never rely on a wireless device as the sole means of making emergency calls
•The C24 module complies with all applicable standards and directives, this does not guarantee that the product it is integrated into complies, expert advice should be sought to identify the applicable regulations and show compliance Suitable warning statements regarding the use of RF energy in the integrated host system should be given in the end user documentation.
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Page 4 of 36
Applicant: Motorola, INC |
FCC ID: IHDP56JE1 |
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C24 Hardware Interface Manual |
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Version 0.3 |
1.2Antenna and Transmission Safety Precautions
User Operation
The C24 module is normally supplied without an antenna, and is compliant with SAR requirements provided the following conditions are observed.
Do not operate your unit when a person is within 8 inches (20 centimeters) of the antenna. A person or object within 8 inches (20 centimeters) of the antenna could impair call quality and may cause the phone to operate at a higher power level than necessary.
Important: The unit must be installed in a manner that provides a minimum separation distance of 20 cm or more between the antenna and persons and must not be co-located or operate in conjunction with any other antenna or transmitter to satisfy FCC RF exposure requirements for mobile transmitting devices.
Important: To comply with the FCC RF exposure limits and satisfy the categorical exclusion requirements for mobile transmitters, the requirements described in the following section, “Antenna Installation” , must be met.
Antenna Installation
•The antenna installation must provide a minimum separation distance of 20 cm from users and nearby persons and must not be co-located or operating in conjunction with any other antenna or transmitter.
•The combined cable loss and antenna gain must not exceed +5.3 dBi (800 band). The combined cable loss and antenna gain must not exceed +4.2 dBi and total system output must not exceed 2.0W EIRP in the PCS (1900) band in order to comply with the EIRP limit of 24.232 (b). OEM installers must be provided with antenna installation instruction and transmitter operating conditions for satisfying RF exposure compliance.
•For system integrations requiring higher antenna gain, or position closer than 20cm from the body, SAR compliance testing of the completed product will be required. It is strongly recommended that the system integrator seeks the advice of a suitably accredited test laboratory to develop a test plan and carry out necessary testing.
CFR 47 Part 15.19 specifies label requirements
The following text may be on the product, user's manual, or container.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1)this device may not cause harmful interference, and
(2)this device must accept any interference received, including interference that may cause undesired operation.
CFR 47 Part 15.21 Information to user
The user's manual or instruction manual for an intentional or unintentional radiator shall caution the user that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. In cases where the manual is provided only in a form other than paper, such as on a computer disk or over the Internet, the information required by this section may be included in the manual in that alternative form, provided the user can reasonably be expected to have the capability to access information in that form.
CFR 47 Part 15.105 Information to the user
(b) For a Class B digital device or peripheral, the instructions furnished the user shall include the following or similar statement, placed in a prominent location in the text of the manual:
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio
Motorola General Business Use
Page 5 of 36
Applicant: Motorola, INC |
FCC ID: IHDP56JE1 |
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C24 Hardware Interface Manual |
|
Version 0.3 |
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
Motorola General Business Use
Page 6 of 36
Applicant: Motorola, INC |
FCC ID: IHDP56JE1 |
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C24 Hardware Interface Manual |
|
Version 0.3 |
2 Hardware Interface Description
The following sections describe in detail the Hardware Interface requirements and operation modes of the C-Lite Module.
2.1Operating Modes
The module should incorporate several operating modes. Each operating mode is different in the active features and interfaces.
The following table summarizes the general characteristics of the module operating modes and provides general guidelines for operation.
TABLE 1 – Module Operating Modes
Mode
Not Powered
RTC Mode
Idle Mode
Low power Mode
CSD or Data
Description
VCC supply is disconnected
Valid VCC supply, RESET_N signal is enabled (low).
RESET_N signal is disabled (high),
CTS_N and DSR_N signals are enabled (low).
RESET_N signal is high, CTS_N signal is disabled
RESET_N signal is high, TXEN_N signal is Low.
Features
Module is Off.
The interface signals are tri-stated.
The Module interface is tri-stated. Only the internal RTC timer is active.
The module is fully active and ready to communicate.
This is the default power-up mode.
The module is in low power mode. The application interfaces are disabled, but it continues to monitor the network.
A voice or data call is in progress. When the call terminates, The Module will return to the last operating state (Idle or Sleep).
Motorola General Business Use
Page 7 of 36
Applicant: Motorola, INC |
FCC ID: IHDP56JE1 |
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C24 Hardware Interface Manual |
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Version 0.3 |
2.2Power Supply
The Module power supply must be a single external DC voltage source of 3.0V to 4.4V.
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TABLE 2 – Power supply signals |
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Signal Name |
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Description |
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1-4 |
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GND |
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Main ground connection for the module. |
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5-8 |
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VCC |
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DC supply input for the module. |
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VIN = 3.0 V to 4.4 V |
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IMAX ≤ 600 mA at TX/RX |
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2.2.1Power Consumption
The following table specifies typical current consumption ratings of the module in various operating modes. The current ratings refer to the overall current consumption through the VCC supply.
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TABLE 3 – Current ratings (VCC = 3.6 V) |
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Parameter |
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Description |
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Conditions |
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Min |
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Typ |
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Max |
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Unit |
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IOFF |
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RTC mode |
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30 |
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uA |
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IIDLE |
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Idle mode |
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Registered |
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20 |
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mA |
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- SCI2 |
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- TBR = 30 minutes |
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ISLEEP |
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Low power mode |
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Legend |
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2.5 |
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mA |
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• SCI2: Paging slots every 5.12 seconds |
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• TBR: Timer Base Registration |
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IMAX |
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Max TX/RX current |
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600 |
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mA |
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Motorola General Business Use
Page 8 of 36
Applicant: Motorola, INC |
FCC ID: IHDP56JE1 |
|
C24 Hardware Interface Manual |
|
Version 0.3 |
2.3Power On/Off Operation
The Module power on and off process includes two primary phases, which are indicated at the interface connector by the hardware output signals RESET_N and CTS_N.
The RESET_N signal indicates whether the module is powered on or off.
When this signal is enabled (low), the module is powered-off. When it is disabled (high), the module is powered-on.
The CTS_N signal indicates the serial communications interface (UART) status.
When this signal is high, the module serial interface is tri-stated. When it is low, the serial interface is enabled, and the module is ready to communicate.
These same conditions apply to the CTS2_N signal with respect to the second serial interface (UART2).
TABLE 4 – On-Off control signals |
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Signal Name |
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Description |
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51 |
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IGN |
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On - Off Logic level control |
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53 |
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ON_N |
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On - Off toggle control |
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2.3.1Turning the module On
When the module power supply is stable above the minimum operating level and it is powered off, it operates in RTC mode, with only the internal RTC timer active.
The C-lite consist of two HW models: basic (without charger), and charger.
The basic module will power on when the ON_N signal or IGN signal is asserted.
The ON_N and IGN signals will be active and responding only after the power supply to the module is stable at operating level.
The charger module will power on when the ON_N signal or valid charger input voltage level is asserted (see “Charger Connectivity” section).
The ON_N (IGN signal is used as Charger input voltage) signal will be active and responding only after the power supply to the module is stable at operating level.
2.3.1.1Turning on the module using ON_N
An internal pull-up resistor sets the ON_N input signal high whenever a power supply is applied to the module.
Asserting the ON_N signal low for a minimum of 200 milliseconds (0.2 seconds) will cause the module to turn-on.
The following figure illustrates the power-on process using the ON_N signal.
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Page 9 of 36
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C24 Hardware Interface Manual |
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Version 0.3 |
FIGURE 4 – ON_N power-on timings
VCC
200ms min
ON_N
<5000ms
CTS_N
RESET_N
2.3.1.2Turning on the module using IGN
This section applies only for the C-Lite standard model (without charger).
To turn on the module this signal must be set high. The IGN signal must remain high for the duration of the module’s operation. The module powers down when the IGN signal is returned to its low state.
The following figure illustrates the power-on process using the IGN signal.
FIGURE 5 – IGN power-on timings
VCC
IGN
<5000ms
CTS_N
RESET_N
A typical IGN implementation is shortening IGN to VCC. In this method applying power to the module, shall also turn on the module simultaneously.
2.3.2Turning the Module Off
There are several ways to turn the module off:
Asserting the ON_N signal low for a minimum of 1.5 seconds.
Setting the IGN signal low
Low power automatic shut down
AT command
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C24 Hardware Interface Manual |
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Version 0.3 |
2.3.2.1Turning off the module using ON_N
The ON_N signal is set high through an internal pull up resistor when power is applied to the module. Asserting the ON_N signal low for a minimum of 1.5 seconds will turn the module off. This will initiate a normal power-off process, which includes disabling of all applications interfaces (UART, SIM card, audio, etc.) and closing the network connection.
The following figure illustrates the power-off timings when using the ON_N signal.
FIGURE 6 – ON_N power off timings
VCC
1500ms min
ON_N
CTS_N
<50000m
RESET_N
2.3.2.2Turning off the module using IGN
This section applies only to the C-Lite standard model (without charger).
The IGN signal may be used to power off the module only if it was also used to power it on. When the IGN signal is set low the module will turn off. This will initiate a normal power-off process, which includes disabling of all applications interfaces (UART, SIM card, audio, etc.) and closing the network connection.
The IGN signal will not power off the module before 30 seconds have elapsed since it was powered-on. This delay mechanism is implemented to protect the module from unexpected transients on the IGN line during power up.
The following figure illustrates the power-off timings when using the IGN signal.
FIGURE 7 – IGN power off timings
VCC
IGN
CTS_N
<5000ms
RESET_N
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Page 11 of 36
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