RTL8188CE miniCard Users Manual Rev. 1.0 03 Dec 2009 COPYRIGHT 2009, All rights reserved TRENDnet,. No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means without the written permission of TRENDnet Inc. DISCLAIMER TRENDnet provides this document as is, without warranty of any kind, neither expressed nor implied, including, but not limited to, the particular purpose. TRENDnet may make improvements and/or changes in this document or in the product described in this document at any time. This document could include technical inaccuracies or typographical errors. TRADEMARKS TRENDnet is a trademark of TRENDnet Semiconductor Corporation. Other names mentioned in this document are trademarks/registered trademarks of their respective owners. USING THIS DOCUMENT This document is intended for the software engineers reference and provides detailed programming information. Though every effort has been made to ensure that this document is current and accurate, more information may have become available subsequent to the production of this guide. In that event, please contact your TRENDnet representative for additional information that may help in the development process. ii Table of Contents 1. GENERAL DESCRIPTION................................................................................................................................................1 2. FEATURES...........................................................................................................................................................................2 3. BLOCK DIAGRAM............................................................................................................................................................3 4. PRODUCT SPECIFICATIONS..........................................................................................................................................4 4.1. MINI PCI EXPRESS PIN ASSIGNMENT..............................................................................................................................4 4.2. MECHANICAL..................................................................................................................................................................5 4.3. ENVIRONMENTAL............................................................................................................................................................5 4.3.1. Operating...............................................................................................................................................................5 4.3.2. Storage....................................................................................................................................................................5 4.4. FUNCTIONAL SPECIFICATIONS.........................................................................................................................................5 4.5. WARNING........................................................................................................................................................................6 4.5.1 Federal Communication Commission Interference Statement......................................................................................6 4.5.2 Industry Canada Statement..........................................................................................................................................8 4.5.3 NCC......................................................................................................................................................................9 List of Tables TABLE 1. MINI PCI EXPRESS PIN ASSIGNMENT............................................................................................................................4 TABLE 2. FUNCTIONAL SPECIFICATIONS.......................................................................................................................................5 List of Figures FIGURE 1. RTL8188CE MINICARD APPLICATION DIAGRAM........................................................................................................3 FIGURE 2. RTL8188CE MINICARD MECHANICAL SPECIFICATION................................................................................................5 iii 1. General Description The TRENDnet RTL8188CE is a highly integrated single-chip Wireless LAN (WLAN) controller compatible with the IEEE 802.11n specification. It combines a MAC, a 1T1R capable baseband, and RF in a single chip. The RTL8188CE provides a complete solution for a high-performance wireless client. The RTL8188CE baseband implements Multiple Input, Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) with one transmit and one receive path (1T1R). Features include one spatial stream transmission, short Guard Interval (GI) of 400ns, spatial spreading, and support for both 20MHz and 40MHz channel bandwidth. For legacy compatibility, Direct Sequence Spread Spectrum (DSSS), Complementary Code Keying (CCK) and OFDM baseband processing are included to support all IEEE 802.11b, and 802.11g data rates. Differential phase shift keying modulation schemes, DBPSK and DQPSK with data scrambling capability are available, and CCK provides support for legacy data rates, with long or short preamble. The high speed FFT/IFFT paths, combined with BPSK, QPSK, 16QAM, and 64QAM modulation of the individual subcarriers, and rate compatible punctured convolutional coding with coding rate of 1/2, 2/3, 3/4, and 5/6, provide higher data rates of 54Mbps and 150Mbps for IEEE 802.11g and 802.11n OFDM respectively. The RTL8188CE builds in an enhanced signal detector, an adaptive frequency domain equalizer, and a soft-decision Viterbi decoder to alleviate severe multi-path effects and mutual interference in the reception of multiple streams. Robust interference detection and suppression are provided to protect against Bluetooth, cordless phone, and microwave oven interference. Efficient IQ-imbalance, DC offset, phase noise, frequency offset, and timing offset compensations are provided for the radio frequency front-end. Selectable digital transmit and receive FIR filters are provided to meet transmit spectrum mask requirements and to reject adjacent channel interference, respectively. The RTL8188CE supports fast receiver Automatic Gain Control (AGC) with synchronous and asynchronous control loops among antennas, antenna diversity functions, and adaptive transmit power control functions to obtain better performance in the analog portions of the transceiver. The RTL8188CE MAC supports 802.11e for multimedia applications, 802.11i for security, and 802.11n for enhanced MAC protocol efficiency. Using packet aggregation techniques such as A-MPDU with BA and A-MSDU, protocol efficiency is significantly improved. Power saving mechanisms such as U-APSD, and APSD, reduces power wasted during idle time, and compensates for the extra power required to transmit OFDM. The RTL8188CE provides simple legacy and 20MHz/40MHz co-existence mechanisms to ensure backward and network compatibility. 1 Rev.1.0 2. Features General
48-pin QFN
CMOS MAC, Baseband PHY and RF in a single chip for IEEE 802.11b/g/n compatible WLAN
75Mbps receive PHY rate and 75Mbps transmit PHY rate using 20MHz bandwidth
150Mbps receive PHY rate and 150Mbps transmit PHY rate using 40MHz bandwidth
Compatible with 802.11n specification
Backward compatible with 802.11b/g devices while operating at 802.11n data rates Host Interface
Complies with PCI Express Base Specification Revision 1.1 / USB 2.0 Standards Supported
IEEE 802.11b/g/n compatible WLAN IEEE 802.11e QoS Enhancement (WMM) IEEE 802.11i (WPA, WPA2). Open, shared key, and pair-wise key authentication services MAC Features
Frame aggregation for increased MAC efficiency (A-MSDU, A-MPDU)
Low latency immediate High-Throughput Block Acknowledgement (HT-BA)
Long NAV for media reservation with CF-End for NAV release
PHY-level spoofing to enhance legacy compatibility RTL8188CE to assume multiple MAC identities when used as a wireless bridge
Supports Wake-On-WLAN via Magic Packet and Wake-up frame
Transmit Opportunity (TXOP) Short Inter-Frame Space (SIFS) bursting for higher multimedia bandwidth Peripheral Interfaces
General Purpose Input/Output (8 pins)
Three configurable LED pins
Configurable Bluetooth Coexistence Interface PHY Features
One Transmit and one Receive path (1T1R)
20MHz and 40MHz bandwidth IEEE 802.11n OFDM transmission
Short Guard Interval (400ns)
DSSS with DBPSK and DQPSK, CCK modulation with long and short preamble
OFDM with BPSK, QPSK, 16QAM, and 64QAM modulation. Convolutional Coding Rate: 1/2, 2/3, 3/4, and 5/6
Maximum data rate 54Mbps in 802.11g, and 150Mbps in 802.11n
Switch diversity for DSSS/CCK
Hardware antenna diversity
Selectable digital transmit and receive FIR
Programmable scaling in transmitter and receiver to trade quantization noise against increased probability of clipping
Fast receiver Automatic Gain Control filters
(AGC)
On-chip ADC and DAC
Power saving mechanism
Channel management and co-existence
Multiple BSSID feature allows the 2 Rev.1.0 3. Block Diagram Figure 1. RTL8188CE miniCard Application Diagram 3 Rev.1.0 4. Product specifications 4.1. Mini PCI Express Pin Assignment Table 1. Mini PCI Express Pin Assignment PIN# Pin Name 1 WAKE#
YES 3 COEX1 YES 5 COEX2 YES 7 CLKREQ#
YES 9 GND YES 11 REFCLK- YES 13 REFCLK+
YES 15 GND YES 17 RESERVED NC 19 RESERVED NC 21 GND YES YES 23 PERn0 YES 25 PERp0 YES 27 GND 29 GND YES YES 31 PETn0 YES 33 PETp0 35 GND YES YES 37 GND NC 39 +3.3Vaux 41 +3.3Vaux NC 43 GND YES 45 RESERVED NC 47 RESERVED NC 49 RESERVED NC 51 RESERVED NC PERST#
+3.3Vaux PIN# Pin Name 3.3Vaux GND 1.5V UIM_PWR YES 2 YES 4 NC 6 NC 8 10 UIM_DATA NC NC 12 UIM_CLK NC 14 UIM_RESET 16 UIM_VPP NC 18 GND YES 20 W_DISABLE# YES 22 YES NC 24 YES 26 GND NC
+1.5V 28 30 SMB_CLK NC NC 32 SMB_DATA YES 34 GND 36 USB_D-
YES YES 38 USB_D+
40 GND NC LED_WWAN# NC 42 44 LED_WLAN# YES LED_WPAN# NC 46 YES 48
+1.5V 50 GND YES YES 52
+3.3Vaux 4 Rev.1.0 4.2. Mechanical Figure 2. RTL8188CE miniCard Mechanical Specification 4.3. Environmental 4.3.1. Operating Operating Temperature: 0 to 70 C Relative Humidity: 5-90% (non-condensing) 4.3.2. Storage Temperature: -55 to 125 C Relevant Humidity: 5-95% (non-condensing) 4.4. Functional Specifications POWER SUPPLY MODULATION TYPE Table 2. Functional Specifications 3.3Vdc0.3Vdc , 365mA from host equipment CCK, DQPSK, DBPSK for DSSS 64QAM, 16QAM, QPSK, BPSK for OFDM MODULATION Technology DSSS, OFDM 5 Rev.1.0 Transfer rate FREQUENCY Range NUMBER OF CHANNEL 802.11b: 11 / 5.5 / 2 / 1Mbps 802.11g: 54 / 48 / 36 / 24 / 18 / 12 / 9 / 6Mbps Draft 802.11n (20MHz, 800ns GI): 65 / 58.5 / 52 / 39 / 26 / 19.5 / 13 /
6.5Mbps Draft 802.11n (40MHz, 800ns GI): 135 / 121.5 / 108 / 81 / 54 / 40.5 / 27
/ 13.5Mbps Draft 802.11n (20MHz, 400ns GI): 72.2 / 65 / 57.8 / 43.3 / 28.9 / 21.7 /
14.4 / 7.2Mbps Draft 802.11n (40MHz, 400ns GI): 150 / 135 / 120 / 90 / 60 / 45 / 30 /
15Mbps 2400MHz ~ 2483.5MHz 11 for 802.11b, 802.11g, draft 802.11n (20MHz) 7 for draft 802.11n (40MHz) 4.5. Warning 4.5.1 Federal Communication Commission Interference Statement 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 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 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. 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. FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. IMPORTANT NOTE:
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. 6 Rev.1.0 This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. IEEE 802.11b or 802.11g operation of this product in the U.S.A. is firmware-limited to channels 1 through 11. This device is intended only for OEM integrators under the following conditions:
The antenna must be installed such that 20 cm is maintained between the antenna and users, and The transmitter module may not be co-located with any other transmitter or antenna, For all products market in US, OEM has to limit the operation channels in CH1 to CH11 for 2.4G band by supplied firmware programming tool. OEM shall not supply any tool or info to the end-user regarding to Regulatory Domain change. As long as 3 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed (for example, digital device emissions, PC peripheral requirements, etc.). IMPORTANT NOTE: In the event that these conditions can not be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID can not be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. End Product Labeling This transmitter module is authorized only for use in device where the antenna may be installed such that 20 cm may be maintained between the antenna and users. The final end product must be labeled in a visible area with the following: Contains FCC ID: XU8RTL8188CE. Manual Information To the End User The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the users manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual. Industry Canada Statement This device complies with RSS-210 of the Industry Canada Rules. Operation is subject to the following two conditions:
1) this device may not cause interference and 2) this device must accept any interference, including interference that may cause undesired operation of the device This device has been designed to operate with an antenna having a maximum gain of 3.45dBi. Antenna having a higher gain is strictly prohibited per regulations of Industry Canada. The required antenna impedance is 50 ohms. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the EIRP is not more than required for successful communication. 7 Rev.1.0 IMPORTANT NOTE:
IC Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. 4.5.2 Industry Canada Statement This device complies with RSS-210 of the Industry Canada Rules. Operation is subject to the following two conditions:
1) this device may not cause interference and 2) this device must accept any interference, including interference that may cause undesired operation of the device This device has been designed to operate with an antenna having a maximum gain of 3.45dBi. Antenna having a higher gain is strictly prohibited per regulations of Industry Canada. The required antenna impedance is 50 ohms. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the EIRP is not more than required for successful communication. IMPORTANT NOTE:
IC Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. This device is intended only for OEM integrators under the following conditions:
The transmitter module may not be co-located with any other transmitter or antenna. As long as conduction above is met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed (for example, digital device emissions, PC peripheral requirements, etc.). The antenna must be installed such that 20 cm is maintained between the antenna and users. IMPORTANT NOTE: In the event that these conditions can not be met (for example certain laptop configurations or co-location with another transmitter), then the IC authorization is no longer considered valid and the IC ID can not be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate IC authorization. 8 Rev.1.0 End Product Labeling The final end product must be labeled in a visible area with the following: Contains IC : 6317A-RTL8188CE. Manual Information That Must be Included The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove. This RF module in the users manual of the end product which integrates this module. The users manual for OEM Integrators must include the following information in a prominent location IMPORTANT NOTE: To comply with FCC RF exposure compliance requirements. The antenna must not be co-located or operating in conjunction with any other antenna or transmitter. 4.5.3 NCC ID TRENDnet Inc. 20675ManhattanPlace,CA90501 Tel:3109615500 Fax:3109615511 www.trendnet.com 9 Rev.1.0