C MAX Asia 179304V21 Bluetooth 4.0 Module User Manual DESCRIPTION

C-MAX Asia limited Bluetooth 4.0 Module DESCRIPTION

User Manual

CMM-9304-V2.1 Bluetooth 4.2/5.0 compatible module This Module is limited to OEM installation ONLY SPEC No. CMM-9304-V2.1 BLE module Revision 2.8 State 2017-11-13 C-MAX printed 2017-11-13 Version English Page 1 of 11 C-MAX 1.0 Description The CMM-9304-V2.1 module is a miniaturised Bluetooth® Low Energy module based on EM Microelectronic's low power fully integrated Bluetooth® low energy single-chip EM9304. Built in with a highly efficient PCB antenna, this small sized, low cost module boasts one of the best power consumption characteristics combined with outstanding Bluetooth Low Energy performances. The flexible architecture of the EM9304 allows it to act as a companion IC to any ASIC or MCU-based product, or as a complete System-on-Chip (SoC). The module offers various possibilities of control via a simple SPI/UART interface: Host Controller Interface (HCI) with the internal Bluetooth® v5.0 link layer; proprietary Application Controller Interface (ACI) with the in-built Bluetooth® v4.2 stack, several profiles, and over-the-air firmware (FOTA) updating routines. 1.1 Features o Utilize EM Microelectronic’s Bluetooth® 5.0 subsystem qualified (QDID 93999) EM9304 chip o Concurrent Master and Slave roles BLE compliant to Bluetooth® 5.0 specification o Embedded Bluetooth® 4.2 stack and profiles, low-power Bluetooth® 5.0 physical layer, Link Layer with security engine, and a Host Controller Interface (HCI) o Low average current consumption  3.0 mA typical peak receiver current (3V powered)  5.2 mA typical peak transmitter current at 0.4 dBm (3V powered)  1.0 uA connect sleep mode current (3V powered)  0.005 uA disable mode current (3V powered) o High sensitivity : -93dBm Bluetooth low energy receiver sensitivity for 255 bytes PDU o Small-sized (14.0mm x 17.0mm) o Integrated Antenna on module, with external antenna connection option o Wide range programmable RF output (-34 to +6.1 dBm) for current consumption optimization. o No Tuning necessary o SPI interface/UART interface to external micro-controller 1.2 Block Diagram
CMM-9304-V2.1 Bluetooth 4.2 / 5.0 compatible module SPEC No. CMM-9304-V2.1 BLE module Revision 2.8 State 2017-11-13 C-MAX printed 2017-11-13 Version English Page 2 of 11 C-MAX 1.2.1 Typical Module Pin Assignment SPI Slave Mode configuration Module Pin Number Module Pin Name Input / Output relative to module Pin Description 1 ANT I RF single ended antenna connection pin (50 ohm) 2 GND GND Ground Connection 3 VBAT Supply VCC Voltage Supply 4 VIO Supply GPIO Voltage Level 5 EN I Chip Enable (Active HI) 6 TM / GPIO5 I/O RESET(Active Low)/Logic Input/output 7 URX / GPIO6 O UART Data in/ Logic Input/output 8 CSN / GPIO0 I SPI Chip Select (Negated) 9 SCK / GPIO1 I SPI Clock Input 10 MISO / GPIO2 I/O SPI Data Out 11 MOSI / GPIO3 I/O SPI Data In 12 UTX / GPIO7 O UART Data Out/ Logic Input/output 13 RDY / GPIO4 O SPI Ready signal 14 TCK / GPIO8 I/O JTAG/ Logic Input/output 15 TDO / GPIO9 I/O JTAG/ Logic Input/output 16 TDI / GPIO10 I/O JTAG/ Logic Input/output 17 TMS / GPIO11 I/O JTAG/ Logic Input/output This module can also be configured into other configuration modes and the pins will be converted to different definitions as the following table :
CMM-9304-V2.1 Bluetooth 4.2 / 5.0 compatible module SPEC No. CMM-9304-V2.1 BLE module Revision 2.8 State 2017-11-13 C-MAX printed 2017-11-13 Version English Page 3 of 11 C-MAX 1.2.2 Module Dimensions and Pinnings Module Thickness (excluding pin header connectors, including shielding) = 2.8 mm max. 1.3 Controller and Companion Modes of Operation Module as Controller (1 in figure below) The CMM-9304 module can be used with an external host where the user application and the host layers of the stack reside in the external processor or host controller. Interaction with the module occurs through the standard HCI commands (defined in the Bluetooth Core Specifications, volume 2, part E) and vendor specific HCI commands via the SPI/UART interface detailed in section 3 below. Module as Companion (2 in figure below) The CMM-9304 module can be used with an external host where the user application resides in the external host, and the stack resides in the EM9304. Interaction with the module occurs through proprietary ACI commands via the SPI/UART interface.
CMM-9304-V2.1 Bluetooth 4.2 / 5.0 compatible module SPEC No. CMM-9304-V2.1 BLE module Revision 2.8 State 2017-11-13 C-MAX printed 2017-11-13 Version English Page 4 of 11 C-MAX 2. SPI Slave Interface The CMM-9304 module has a Slave SPI to be used for the HCI (or ACI) transport layer. 2.1 SPI Slave Features The SPI slave block supports following features:  4 wire SPI interface (SCK, CSN, MISO, MOSI) with flow control (RDY output signal).  Half duplex communication. Direction (write/read) is determined by a control byte  Supported SPI clock speed up to 16MHz.  Motorola compliant, clock polarity CPOL = 0 (clock is inactive low), clock phase CPHA = 0 (data is valid on clock rising edge).  All 4 SPI clock polarity/phase configurations.  64 bytes long RX FIFO for reception and 64 bytes long TX FIFO for transmission.   Multi byte transactions (without de-asserting CSN between bytes) 2.2 SPI Slave RDY signal RDY signal has following meaning depending on SPI transaction phase: 1. Data ready (when CSN = '1')  RDY at '1'  SPI Slave has some data to send.  RDY at '0'  SPI Slave has no data to send.  2. SPI ready (between CSN falling edge and end of 1st header byte) • RDY at '1'  SPI Slave is ready and SPI transaction can start, SPI Master can transmit another byte. • RDY at '0'  SPI Slave is not ready and SPI transaction cannot start. SPI masterhas to wait until RDY is at '1'.  3. Buffer ready (between end of 1st header byte and CSN rising edge) • RDY at '1' buffer is ready and byte can be written/read
CMM-9304-V2.1 Bluetooth 4.2 / 5.0 compatible module SPEC No. CMM-9304-V2.1 BLE module Revision 2.8 State 2017-11-13 C-MAX printed 2017-11-13 Version English Page 5 of 11 C-MAX • RDY at '0' buffer is not ready and byte cannot be written/read. SPI master has towait until RDY is at '1'. After asserting CSN and before sending first byte SPI Master checks if RDY is at '1'. This check shall be done at least T_RDY (100ns) after asserting CSN. If RDY is at '1' SPI transaction can start, if RDY is at '0' SPI master has to wait until RDY is at '1'. An example of write transaction using RDY as a flow control during transaction is shows in Figure 1. • • Figure 1: SPI Slave write transaction with active flow control by means of RDY. 2.3 Flow Control using Byte count in Status Byte STS2 A Master with DMA, using the status byte STS2, can run an SPI transaction without interruptions. In this case SPI Master can ignore RDY during the SPI transaction and use instead the status byte STS2 to determine the maximum length of the SPI transaction. Once maximum length of SPI transaction is known (from STS2), the SPI Master can configure the DMA to realize the rest of the SPI transaction. After transmitting the given number of bytes (less than or equal to maximum length determined from STS2) SPI transaction shall be finished by de-asserting CSN. A new SPI transaction shall start by asserting CSN and reading status bytes to determine maximum length of this new transaction. Examples of transactions ignoring RDY are shown in Figure 2 and in Figure 3. Figure 2: SPI Slave Write Transaction. Figure 3: SPI Slave Read Transaction.
CMM-9304-V2.1 Bluetooth 4.2 / 5.0 compatible module SPEC No. CMM-9304-V2.1 BLE module Revision 2.8 State 2017-11-13 C-MAX printed 2017-11-13 Version English Page 6 of 11 C-MAX 2.4 SPI Slave Operation Start of the SPI transaction is as follows: 1. The SPI Master asserts CSN to '0', 2. Waits until RDY is at '1' 3. Sends 2 header bytes 4. Reads the status bytes STS1 and STS2. The status byte STS1 on MISO indicates general status of device. The status byte STS2 on MISO indicates buffer capacity and it depends on read or write transaction. In case of write transaction STS2 contains the number of bytes which can be written into Slave RX buffer. In case of read transaction STS2 contains the number of bytes which can be read from Slave TX buffer. After receiving header bytes (STS1 and STS2), the SPI Master knows how many bytes can be transferred via SPI in the current transaction (read or write) and the rest of SPI transaction is standard. The control byte (CTRL) sent on MOSI defines type of transaction (read or write). The second byte on MOSI is dummy to align with read status data from the Slave and reads 0x00. The type of transaction (read or write) in half duplex mode is defined by CTRL, the 1st byte sent by the Master:  CTRL = 0x81 for a read transaction.  CTRL = 0x42 for a write transaction.  The STS1 byte contains the status of the SPI slave.  STS1 = 0xC0 when slave is ready. The STS2 byte contains the maximum number of bytes which can be written into RX FIFO without RX FIFO overflow during a write transaction, or the maximum number of bytes which can be read from TX FIFO without TX FIFO underflow during a read transaction. An SPI transaction can be terminated by the SPI Master at any time. The SPI Master can send only a header in order to get the status of the RX/TX buffer and then stop the SPI transaction.
CMM-9304-V2.1 Bluetooth 4.2 / 5.0 compatible module SPEC No. CMM-9304-V2.1 BLE module Revision 2.8 State 2017-11-13 C-MAX printed 2017-11-13 Version English Page 7 of 11 C-MAX 3. HCI commands The HCI commands provide access and control to various capabilities of the Link Layer of the EM9304 controller on the module as defined in the Bluetooth Core Specifications, volume 2, part E. For details of the standard Bluetooth HCI commands, please refer to the Bluetooth Specification Version 5.0. In addition, vendor specific HCI commands are also usable for the control and monitor of EM9304 chip specific features HCI Command OGF OCF Opcode PTM Support EM_SetPublicAddress 0x3F 0x002 0xFC02 No EM_SetUartBaudRate 0x3F 0x007 0xFC07 No EM_TransmitterTest 0x3F 0x011 0xFC11 No EM_TransmitterTestEnd 0x3F 0x012 0xFC12 No EM_ReadAtAddress 0x3F 0x020 0xFC20 Yes EM_ReadContinue 0x3F 0x021 0xFC21 Yes EM_WriteAtAddress 0x3F 0x022 0xFC22 Yes EM_WriteContinue 0x3F 0x023 0xFC23 Yes EM_SetPowerModeEx 0x3F 0x024 0xFC24 Yes EM_SetRfActivitySignalEx 0x3F 0x025 0XFC25 Yes EM_SetRfPowerLevelEx 0x3F 0x026 0xFC26 No EM_WritePatchStart 0x3F 0x027 0xFC27 Yes EM_WritePatchContinue 0x3F 0x028 0xFC28 Yes EM_WritePatchAbort 0x3F 0x029 0xFC29 Yes EM_SetClockSource 0x3F 0x02A 0xFC2A Yes EM_SetMemoryMode 0x3F 0x02B 0xFC2B Yes EM_GetMemoryUsage 0x3F 0x02C 0xFC2C Yes EM_SetSleepOptions 0x3F 0x02C 0xFC2D Yes EM_SvldMeasurement 0x3F 0x02C 0xFC2E Yes EM_SetEventMask 0x3F 0x0A7 0xFC2F Yes EM_CalculateCrc32Ex 0x3F 0x0A1 0xFCA1 Yes For details of description of EM Vendor specific commands, please refer to EM9304 datasheet. 4. Recommended PCB layout and foot print Footprint on main PCB for module connection Recommended PCB layout
CMM-9304-V2.1 Bluetooth 4.2 / 5.0 compatible module SPEC No. CMM-9304-V2.1 BLE module Revision 2.8 State 2017-11-13 C-MAX printed 2017-11-13 Version English Page 8 of 11 C-MAX 5. Key Module Electrical Specifications Specifications CMM-9304-V2.1 Bluetooth Version Bluetooth® 5.0 (HCI, LL, PHY), 4.2 (stack) Input Voltage Range 1.9 V to 3.6V Frequency Range 2.400 to 2.484 GHz Modulation GFSK On-air data rate 1Mbps RF channels 40 RF Output Power - 34 ~ + 6.1 dBm RF Input Impedance 50 ohms RF Sensitivity (for 255 byte extended PDU) -93dBm Current Consumption (Vcc = 3.0V) - Off mode (Chip Disable) 0.005 uA typ. - Connected Sleep mode (LC Xtal) 1 uA typ. - Active mode (RX) 3.0 mA typ. - Active mode (TX at 0.4 dBm) 5.2 mA typ. Operating Temperature Range - 20 to + 60 degrees C Operating Humidity 30% ~ 90% Storage Temperature Range - 40 to + 85 degrees C Storage Humidity 30% ~ 90% 6. Temperature Profile for Lead-free Reflow Soldering
CMM-9304-V2.1 Bluetooth 4.2 / 5.0 compatible module SPEC No. CMM-9304-V2.1 BLE module Revision 2.8 State 2017-11-13 C-MAX printed 2017-11-13 Version English Page 9 of 11 C-MAX 7. Ordering Information 8. Packaging Information In trays of 100 pcs per tray 9. FCC Warning Statement FEDERAL COMMUNICATIONS 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 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. 9.1 Caution Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. 9.2 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 This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter. Part Number Shielding Dimensions (in mm) DC-DC Power supply range (in V) With pin connectors? CMM-9304-V2.1S Shielded 14.0 x 17.0 Step-down configuration 1.9 ~ 3.6 No CMM-9304-V2.1SP Shielded 14.0 x 17.0 Step-down configuration 1.9 ~ 3.6 Yes
CMM-9304-V2.1 Bluetooth 4.2 / 5.0 compatible module SPEC No. CMM-9304-V2.1 BLE module Revision 2.8 State 2017-11-13 C-MAX printed 2017-11-13 Version English Page 10 of 11 C-MAX 9.3. Important Note The module is limited to OEM installation ONLY 1. We hereby acknowledge our responsibility to provide guidance to the host manufacturer in the event that they require assistance for ensuring compliance with the Part 15 Subpart B requirements. 2. The host manufacturer is responsible for additional testing to verify compliance as a composite system. When testing the host device for compliance with the Part 15 Subpart B requirements, the host manufacturer is required to show compliance with the Part 15 Subpart B while the transmitter module(s) are installed and operating. The modules should be transmitting and the evaluation should confirm that the module’s intentional emissions are compliant (i.e. fundamental and out of band emissions) with the Radio essential requirements. The host manufacturer must verify that there are no additional unintentional emissions other than what is permitted in the Part 15 Subpart B or emissions are complaint with the Radio aspects. This module is intended for OEM integrator. The OEM integrator is still responsible for 1. ensuring that the end-user has no manual instructions to remove or install module 2. the FCC compliance requirement of the end product, which integrates this module. 3. Appropriate measurements(e.g. 15 B compliance) and if applicable additional equipment authorizations (e.g. Verification, Doc) of the host device to be addressed by the integrator/manufacturer. 4. The separate approval is required for all other operating configurations, including portable configurations with respect to Part 2.1093 and different antenna configurations 5. 20cm minimum distance has to be able to be maintained between the antenna and the users for the host this module is integrated into. Under such configuration, the FCC radiation exposure limits set forth for an population/uncontrolled environment can be satisfied. 6. Any changes or modifications not expressly approved by the manufacturer could void the user's authority to operate this equipment. 7. That module is limited to installation in mobile or fixed applications, according to Part 2.1091(b) 8. The maximum antenna gain required for authorized antennas per Part15. 204 (including ant. spec.) The user manual of the end product should include In the users manual of the end product, the end user has to be informed to keep at least 20cm separation with the antenna while this end product is installed and operated. The end user has to be informed that the FCC radio-frequency exposure guidelines for an uncontrolled environment can be satisfied. The end user has to also be informed that any changes or modifications not expressly approved by the manufacturer could void the user's authority to operate this equipment. If the size of the end product is smaller than the palm of the hand, then additional FCC part 15.19 statement is required to be available in the users manual: This device complies with Part 15 of 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. 10. RED Statement This device is pending for compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU
CMM-9304-V2.1 Bluetooth 4.2 / 5.0 compatible module SPEC No. CMM-9304-V2.1 BLE module Revision 2.8 State 2017-11-13 C-MAX printed 2017-11-13 Version English Page 11 of 11 C-MAX Disclaimer of Warranty Information furnished is believed to be accurate and reliable. However C-MAX assumes no responsibility, neither for the consequences of use of such information nor for any infringement of patents or other rights of third parties, which may result from its use. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. C-MAX products are not authorized for use as critical components in life support devices without express written approval of C-MAX. Note It is not given warranty that the declared circuits, devices, facilities, components, assembly groups or treatments included herein are free from legal claims of third parties. The declared data are serving only to description of product. They are not guaranteed properties as defined by law. The examples are given without obligation and cannot give rise to any liability. Reprinting this data sheet - or parts of it - is only allowed with a license of the publisher. C-MAX reserves the right to make changes on this specification without notice at any time. C-MAX Asia Ltd C-MAX Technology Ltd (Shenzhen) Unit 117, 1/F., Unit 33H,33/F., Liven House, International Trade Commercial Building, 61-63 King Yip Street, 3005 Nanhu Road, Kwun Tong, Kowloon, HK SAR Luohu District, Shenzhen, PR China, Tel.: +852-2798-5182 Tel: +86-755-25181858 Fax: +852-2798-5379 Fax: +86-755-25181859 e-mail: enquiry@c-max.com.hk email: mandy@c-max.com.cn

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