muRata SN8000CMK Bluetooth Modules User Guide

SN8000CMK Bluetooth Modules
User Guide

SN8000CMK Bluetooth Modules

Revision History

Introduction

SN8000 is a FCC/IC/ETSI certified IEEE 802.11b/g/n Wi-Fi module. It integrates Wi-Fi SoC, RF front end, clock, and on-board antenna or U.FL connector. The SN8000 CM Kit can serve as a software development platform to design IP- enabled WiFi systems for Freescale iMX6 platform. This document provides the information for setting up the CMK.
The SN8000CM Kit consists of a SN8000CM board, a SN8000UFLCM board and a Murata i.MX Interconnect board. The only difference between SN8000 and SN8000UFL is the RF interface. SN8000 contains an onboard antenna, while SN8000UFL provides an UFL connector for use with an external antenna. The following antennas are included for SN8000UFL, Microchip TRF1002 (+5dBi) and Pulse Electronics W1049B050 (+2dBi)¹ . The 2dBi antenna must be used for ETSI ompliant applications. This application note applies to following SN8000 modules.

1.1 Acronyms

1.2 References

1. Murata, SN8000/SN8000UFL WiFi Module Datasheet, “sn8000-8000ufl_ds_112513.pdf”
2. Murata, SN8000 CM schematic, “SN8000_CM_JZ154_SCH_Rev0R3_20130315.pdf”
3. Murata, Murata i.MX Interconnect schematic, “Murata_SD_BCM_Adapter_Rev5.pdf”
4. Samtec Inc., QTH Datasheet

SN8000/SN8000UFL CM Configuration
The hardware of SN8000 Carrier Module (SN8000CM) consists of a single printed circuit board module mounted with SN8000 and a 64-pin connector. Figure 2 shows the picture of the SN8000CM board. The SN8000UFL CM board is configured the same except mounted with SN8000UFL module.Samtec QTH-030-01-L-D-A 60-pin connector is used to connect to Murata i.MX Interconnect board. Table 2 below lists the pin-out information[1,2]

disabled. It is forced on for SPI mode.
15| 5| BTCX FREQ/GPIO 1| GPIO/Coexistence output signal indicating Bluetooth transmission in restricted channel. Hi-Z at power-up and reset.
16| 34| SDIO DATA 1/ SPI IRQ| SDIO data line 1 with internal weak pull-up that can be disabled.
17| 10| RST N| Active low WLAN reset signal with internal 200K pulldown.
18| 38| SDIO DATA 3/ SPI CSX| SDIO data line 3 with internal weak pull-up that can be disabled.
20| 36| SDIO CLK/ SPI CLK| SDIO clock.
21| 45| JTAG TCK| JTAG pin.
Connector pin #| SN8000 Pin#| SN8000 Pin| Description
---|---|---|---
22| 35| SDIO_DATA_0/ SPI_MISO| SDIO data line 0 with internal weak pull-up that can be disabled.
23| | GND| Ground
24| 37| SDIO_CMD/ SPI_MOSI| SDIO command line with internal weak pull-up that can be disabled.
25| 47| JTAG_TMS| JTAG pin.
26| | GND| Ground
27| 4| JTAG_TDO| JTAG pin/UART_TX.
29| 3| JTAG_TDI| JTAG pin/UART_RX.
31| | JTAG_TRS_L| JTAG pin.
38| 30| BTCX_RF_ACTIVE/GPIO5| GPIO/Coexistence signal indicating Bluetooth is active. Hi-Z at power-up and reset.
40| 29| BTCX TXCONF/GPIO _3| GPIO/Coexistence output giving Bluetooth permission to transmit. Hi-Z at power-up and reset.
42| 28| BTCX_STATUS/GPI0_4| GPIO/Coexistence signal indicating Bluetooth priority status and TX/RX direction. Hi-Z at power-up and reset.
44| 11| VDD3V3_EN| Enables internal 3.3V LDO. Has 100K PU.
46| 7| ANT_SEL2| Auxiliary antenna select line (RFSW_CONTROL3). Default low.
48| 8| ANT_SEL1| Main antenna select line (RFSW_CONTROLO). Default high.
49| | GND| Ground
50| 6| GPIOO| GPIO/Strapping option for SDIO (pull low) or SPI mode (pull high). Has 10K PD
52| | GND| Ground
53| 12| VDD_BAT| Module power supply
55| 12| VDD_BAT| Module power supply
56| 33| VDD_IO| Power for 10 and SDIO pads
57| | GND| Ground
58| | GND| Ground
59| 31| SLEEP_CLK| Optional external 32KHz sleep clock. Tie to GND if not used.

Table 2 SN8000 CM Board Pin-out
Murata i.MX Interconnect Board Configuration
The Murata i.MX Interconnect board is a comprehensive adapter board for i.MX6.

• Connects standard SDIO lines: DAT[0..3], CLK, CMD.
• Connects additional WL_REG_ON and WL_HOST_WAKE control signals.
• Provides 32 KHz slow clock on adapter board.
• Power SN8000 EVB from either VBAT_SDIO (from Freescale EVK) or from external lab bench power supply.

Samtec QSH-030-01-L-D-A 60-pin connector is used on board to connect to the SN8000/SN8000UFL CM.
3.1 Default Configuration
Table 3 shows the pin-out from the Murata i.MX Interconnect board [1,2,3]

MMCPin#| Freescale i.MX EVK SD /MMC Pin| CM Pin #| SN8000 CM Signal| SN8000 Pin#| Short-Pad /Jumper
Closed| Notes
---|---|---|---|---|---|---
1| DAT3| 18| SDIO DATA 3| 38| N/A| WLAN 4-bit SDIO connection is default. Cannot be modified.
2| CMD| 24| SDIO CMD| 37| N/A| WLAN 4-bit SDIO connection is default. Cannot be modified.
3| VSS| | NC| | N/A| Note used
N/A| | 56| VDD_IO| 33| TP115; (TP122+TP123)| Default configuration VDD_IO is set to VBAT_SDIO 3.3V.
For 1.8V VIO Option: switch jumper (TP122+TP123) to (TP123+TP124)
4| VDD| 53,55| VDD_BAT| 12| TP133| VBAT_SDIO from Freescale EVK typically 3.3V. Alternative option is connecting external power supply (4-5V Range) so VBAT IN=3.6V.
5| CLK| 20| SDIO CLK| 35| N/A| WLAN 4-bit SDIO connection is default. Cannot be modified.
6| VSS| | NC| | N/A| Note used
7| DATO| 22| SDIO DATA 0| 36| N/A| WLAN 4-bit SDIO connection is default. Cannot be modified.
8| DAT1| 16| SDIO DATA 1| 24| N/A| WLAN 4-bit SDIO connection is default. Cannot be modified.
9| DAT2| 14| SDIO DATA 2| 2| N/A| WLAN 4-bit SDIO connection is default. Cannot be modified.
10| DAT4| | | | |
11| DAT5| 45| NC| N/A| TP109| This pin is NOT connected to SN8000 by default. It can be optionally used to connect to
MMCPin #| Freescale i.MX EVK SD /MMC Pin| CM Pin #| SN8000 CM Signal| SN8000 Pin#| Short-Pad /Jumper
Closed| Notes
---|---|---|---|---|---|---
| | | | | | SN8000 module pin 5 (GPIO1). Please see section 3.2.
12| DATE| 41| NC| N A| TP130| This pin is NOT connected to SN8000 by default. It can be optionally used to connect to SN8000 module pin 10 (RST_N). Please see section 3.2.
13| DAT7| | | | |

Table 3 Murata i.MX Interconnect Board Pin-out
Figure 4 and Figure 5 below shows the top and bottom view of the board.

Figure 5 Murata i.MX Interconnect Board Bottom View

3.2 Optional Connection
DAT5 and DAT6 can be used optionally to connect to SN8000 GPIO1 and RST_N pins.
3.2.1 DAT5
DAT5 pin can be alternatively used to connect to SN8000 CM/SN8000UFL CM pin 15, which is connected to SN8000/SN8000UFL module pin 5, GPIO1.

| MMCPin #| Freescale i.MX EVK SD /MMC Pin| SN8000 CM/ Murata i.MX Interconnec t Pin #| Murata i.MX Interconnect pin| SN8000 CM Signal| SN8000 Pin #| SN8000 Signal| Short-Pad Config
---|---|---|---|---|---|---|---|---
Default| 11| DAT5| 45| BT UART RXD| NC| NiA| N/A| Close TP109 Open TP105
Option| 11| DAT5| 15| WL HOST WA _KE| WL IRQ| 5| GPIO1| Open TP109 Close TP105

Table 4 DAT5 Pin Alternative Connection
To achieve this, disconnect TP109 and connect TP105. 3.2.2 DAT6
DAT6 pin can be alternatively used to connect to SN8000 CM/SN8000UFL CM pin 17, which is connected to SN8000/SN8000UFL module pin 10, RST_N.

| MMCPin #| Freescale
i.MX EVK SD/MMC Pin| SN8000 CM/ Murata i.MX Interconnec t Pin #| Murata i.MX Interconnect pin| SN8000 CM Signal| SN8000 Pin#| SN8000 Signal| Short-Pad Config
---|---|---|---|---|---|---|---|---
Default| 12| DAT6| 41| BT UART RTS| N/A| N/A| N/A| Close TP130
Open TP129
Option| 12| DAT6| 17| WL REG ON| WL RST N | 10| RST_N| Open TP130
Close TP129

Table 5 DAT6 Pin Alternative Connection
To achieve this, disconnect TP130 and connect TP129.

Connect to Freescale i.MX6
Before connect the SN8000CMK to i.MX6 development board, check and confirm the interface voltage that you are going to use and make sure the jumper is in the correct position as you want, see Figure 8. Connect VBAT_SDIO (TP122) and VIO_IN (TP123), the board is configured to take VBAT_SDIO 3.3V. Connect VIO_IN (TP123) and VIO_REG_OUT (TP124), VDD_IO is set to 1.8V.
NOTE: There is no place to print the label for TP122, TP123 and TP124. Please compare this section with the Murata i.MX Interconnect board schematic. Errata
The TP133 is misprinted as TP135 on the bottom side of the Murata i.MX Interconnect board, see Figure 10. Software
Driver of SN8000 is integrated in the i.MX6 the BSP. Please refer to Murata wireless website, http://wireless.murata.com/wireless/iMX, for details.

Technical Support Contact

Contact Wireless module application support at imxfaq@murata.com
Murata Electronics, N.A., Inc. 4441 Sigma Road Dallas, TX 75244 USA

©2009-2014 by Murata Electronics N.A., Inc.
SN8000CMK User Guide Rev. 1.0 – 06/08/15
www.murata.com
Downloaded from Arrow.com.

References

• wireless.murata.com/wireless/iMX

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