Subject Marketing Name Model No. Description Product Specification M32 HomeKit Wi-Fi module FWS703 M32 Wi-Fi 2.4GHz module support HomeKit Rev 1.0 Page 1 of 11 1. Overview M32 is 2.4GHz 1T1R Wi-Fi module that targets the Internet of Thing market, especially for Apple HomeKit application. The module shows low-power and easy development. Also integrated WAC function and compliance to Apple HomeKit Accessory Protocol standard. As such the module does offer industry-leading specifications and the best performance for electronic integration, range, power consumption, and connectivity. Key Features IEEE802.11 b/g/n Wi-Fi 2.4GHz 1T1R 150Mbps Compliance to Wireless Accessory Configuration protocol Compliance to Bonjour protocol Compliance to HomeKit Accessory Profile (HAP) R12 Apple CP embedded Support Apple defined profile (Outlet, thermostat, LightBulb , Fan..etc) OTA (Over The Air) to Cloud function ( Optional ) Dual Image Categories Items Hardware Moduleinterface On-chip sensor On-board clock Operatingvoltage/Powersupply Operating current Minimum current delivered by powersupply Operating temperature range Ambient temperature range Package size Wi-Fimode Wi-FiSecurity Encryption Specifications SD card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S,IR GPIO, capacitive touch sensor, ADC, DAC Hallsensor,temperaturesensor 40 MHz crystal 2.7 ~3.6V Average: 80mA 500 mA 0C ~+80C Normal temperature 180.2mmx25.50.2mmx3.10.15mm Station/SoftAP/SoftAP+Station/P2P WPA/WPA2/WPA2-Enterprise/WPS AES/RSA/ECC/SHA Subject Marketing Name Model No. Description Product Specification M32 HomeKit Wi-Fi module FWS703 M32 Wi-Fi 2.4GHz module support HomeKit Rev 1.0 Page 2 of 11 UARTDownload/OTA(downloadandwritefirmware via networkorhost) IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT Specifications FCC/CE/IC/TELEC/KCC/SRRC/NCC Wi-FiAlliance BQB RoHS/REACH 802.11 b/g/n (802.11n up to 150 Mbps) 2.4 GHz ~2.5 GHz Firmware upgrade Networkprotocols Items RFcertification Wi-Fi certification Bluetooth certification Green certification Protocols Frequencyrange Software Categories Certification Wi-Fi Table 1: M32 Module Specifications 2. Pin Definitions 2.1 Pin Layout Figure 1: M32 Pin Layout Subject Marketing Name Model No. Description Product Specification M32 HomeKit Wi-Fi module FWS703 M32 Wi-Fi 2.4GHz module support HomeKit 2.2 Pin Description M32 has 38 pins. See pin definitions in Table 2. Rev 1.0 Page 3 of 11 Table 2: Pin Definitions Name GND 3V3 EN SENSOR_VP SENSOR_VN IO34 IO35 No. 1 2 3 4 5 6 7 Type P P I I I I I IO32 IO33 IO25 IO26 IO27 Name IO14 IO12 GND IO13 SHD/SD2*
SWP/SD3*
SCS/CMD*
SCK/CLK*
SDO/SD0*
SDI/SD1*
IO15 IO2 8 9 10 11 12 I/O I/O I/O I/O I/O No. Type 13 14 15 16 17 18 19 20 21 22 23 24 I/O I/O P I/O I/O I/O I/O I/O I/O I/O I/O I/O Function Ground Power supply. Chip-enablesignal. Activehigh. GPIO36,SENSOR_VP,ADC_H,ADC1_CH0,RTC_GPIO0 GPIO39,SENSOR_VN,ADC1_CH3,ADC_H,RTC_GPIO3 GPIO34, ADC1_CH6, RTC_GPIO4 GPIO35, ADC1_CH7, RTC_GPIO5 GPIO32, XTAL_32K_P (32.768 kHz crystal oscillator input),ADC1_CH4, TOUCH9, RTC_GPIO9 GPIO33,XTAL_32K_N(32.768kHzcrystaloscillatoroutput),ADC1_CH5, TOUCH8, RTC_GPIO8 GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0 GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1 GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17, EMAC_RX_DV MTDI, HSPIQ, ADC2_CH4, ADC2_CH5, RTC_GPIO14, RTC_GPIO15, Function GPIO14, ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK,EMAC_TXD2 GPIO12, TOUCH5, HS2_DATA2, SD_DATA2, EMAC_TXD3 Ground GPIO13, TOUCH4, HS2_DATA3, SD_DATA3, EMAC_RX_ER GPIO9, SD_DATA2, SPIHD, HS1_DATA2, U1RXD GPIO10, SD_DATA3, SPIWP, HS1_DATA3, U1TXD GPIO11,SD_CMD,SPICS0,HS1_CMD,U1RTS GPIO6, SD_CLK, SPICLK, HS1_CLK, U1CTS GPIO7, SD_DATA0, SPIQ, HS1_DATA0, U2RTS GPIO8, SD_DATA1, SPID, HS1_DATA1, U2CTS GPIO15, ADC2_CH3, TOUCH3, MTDO, HSPICS0, RTC_GPIO13, HS2_CMD, SD_CMD,EMAC_RXD3 GPIO2, ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP, HS2_DATA0,SD_DATA0 MTCK, HSPID, Subject Marketing Name Model No. Description Product Specification M32 HomeKit Wi-Fi module FWS703 M32 Wi-Fi 2.4GHz module support HomeKit Rev 1.0 Page 4 of 11 25 26 27 28 29 30 31 32 33 34 35 36 37 38 I/O I/O I/O I/O I/O I/O I/O
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I/O I/O I/O I/O I/O P GPIO0, ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1, EMAC_TX_CLK GPIO4, ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1,SD_DATA1, EMAC_TX_ER GPIO16, HS1_DATA4, U2RXD, EMAC_CLK_OUT GPIO17, HS1_DATA5, U2TXD, EMAC_CLK_OUT_180 GPIO5,VSPICS0,HS1_DATA6,EMAC_RX_CLK GPIO18, VSPICLK, HS1_DATA7 GPIO19, VSPIQ, U0CTS, EMAC_TXD0
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GPIO21, VSPIHD, EMAC_TX_EN GPIO3, U0RXD, CLK_OUT2 GPIO1, U0TXD, CLK_OUT3, EMAC_RXD2 GPIO22, VSPIWP, U0RTS, EMAC_TXD1 GPIO23, VSPID, HS1_STROBE Ground IO0 IO4 IO16 IO17 IO5 IO18 IO19 NC IO21 RXD0 TXD0 IO22 IO23 GND Note:
* Pins SCK/CLK, SDO/SD0, SDI/SD1, SHD/SD2, SWP/SD3 and SCS/CMD, namely, GPIO6 to GPIO11 are connected to the integrated SPI flash integrated on M32 and are not recommended for other uses. 3. Functional Description This chapter describes the modules and functions 3.1 CPU and Internal Memory M32 contains two low-power Xtensa 32-bit LX6 microprocessors. The internal memory includes:
448 kB of ROM for booting and core functions. 520 kB (8 kB RTC FAST Memory included) of on-chip SRAM for data and instruction. 8 kB of SRAM in RTC, which is called RTC SLOW Memory and can be accessed by the co-processor during the Deep-sleep mode. 1 Kbit of eFuse, of which 320 bits are used for the system (MAC address and chip configuration) and the remaining 704 bits are reserved for customer applications, including Flash-Encryption and Chip-ID. 3.2 External Flash and SRAM Subject Marketing Name Model No. Description Product Specification M32 HomeKit Wi-Fi module FWS703 M32 Wi-Fi 2.4GHz module support HomeKit Rev 1.0 Page 5 of 11 M32 supports up to four 16-MB of external QSPI flash and SRAM with hardware encryption based on AES to protect developers programs and data. M32 can access the external QSPI flash and SRAM through high-speed caches. Up to 16 MB of external flash are memory-mapped onto the CPU code space. 3.3 Crystal Oscillators The M32 Wi-Fi module already embedded the 40 MHz crystal oscillator. 4. Electrical Characteristics Note:
The specifications in this chapter have been tested under the following general condition: VDD = 3.3V, TA = 27C, unless otherwise specified. 4.1 Absolute Maximum Ratings Table 3: Absolute MaximumRatings
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0.5 IVDD Typ 3.3 Min 2.7 Max 3.6 Symbol VDD Parameter Power supply Minimum current delivered by powersupply Input low voltage Input highvoltage Input leakage current Inputpincapacitance Outputlowvoltage Outputhighvoltage Maximumoutputdrivecapability Storagetemperaturerange Operating temperature range 1. VIO is the power supply for a specific pad. For example, the power supply for SD_CLK is
-0.3 0.75VIO 1
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-
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0.8VIO 1
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-40
-40 VIL VIH IIL Cpad VOL VOH IMAX TSTR TOPR
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0.25VIO 1 VIO1+0.3 50 2 0.1VIO 1
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40 85 85
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-
-
-
-
-
-
-
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Unit V A V V nA pF V V mA C C the VDD_SDIO. 4.2 Wi-Fi Radio Table 4: Wi-Fi Radio Characteristics Description Input frequency Min 2412 Typical
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Max 2484 Unit MHz Subject Marketing Name Model No. Description Product Specification M32 HomeKit Wi-Fi module FWS703 M32 Wi-Fi 2.4GHz module support HomeKit Rev 1.0 Page 6 of 11 Inputreflection Output power of PAfor 72.2 Mbps Output power of PAfor 11b mode DSSS, 1 Mbps CCK, 11 Mbps OFDM, 6Mbps OFDM, 54Mbps HT20,MCS0 HT20,MCS7 Description HT40,MCS0 HT40,MCS7 MCS32 OFDM, 6Mbps OFDM, 54Mbps HT20,MCS0 HT20,MCS7
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Txpower 13 19.5 Sensitivity
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14 20
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-
-
-
-
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Min
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-
-
-98
-91
-93
-75
-93
-73 Typical
-90
-70
-89 Adjacent channel rejection
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-
-
-
37 21 37 20
-10 15 20.5
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-
-
-
-
-
Max
-
-
-
-
-
-
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dB dBm dBm dBm dBm dBm dBm dBm dBm Unit dBm dBm dBm dB dB dB dB 5. Peripheral Schematics Rev 1.0 Page 7 of 11 Subject Marketing Name Model No. Description Product Specification M32 HomeKit Wi-Fi module FWS703 M32 Wi-Fi 2.4GHz module support HomeKit Figure 4: M32 Peripheral Schematics 6. Dimensions Board Dimension: 20.00mm x 23.00mm Pad pitch: 0.9mm Figure 5: M32 Module Dimension and Recommend footprint(right) Subject Marketing Name Model No. Description Product Specification M32 HomeKit Wi-Fi module FWS703 M32 Wi-Fi 2.4GHz module support HomeKit Rev 1.0 Page 8 of 11 It is herewith confirmed and found to comply with the requirements set up by ANSI C63.4 & FCC PART 15 regulations for the evaluation of electromagnetic compatibility. FEDERAL COMMUNICATIONS COMMISION (FCC) STATEMENT 15.21 You are cautioned that changes or modifications not expressly approved by the part responsible for compliance could void the users authority to operate the equipment. 15.105(b) Federal Communications Commission (FCC) 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. 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 of the device. Subject Marketing Name Model No. Description Product Specification M32 HomeKit Wi-Fi module FWS703 M32 Wi-Fi 2.4GHz module support HomeKit Rev 1.0 Page 9 of 11 FCC RF Radiation Exposure Statement:
1. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 2. This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions for satisfying RF exposure compliance. 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: 2AN36-FWS703. The grantee's FCC ID can be used only when all FCC compliance requirements are met. 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. Taiwan-NCC Compliance Statement CCXXxxLPyyyZzW 1.This equipment complies with the provisions of the technical specification for low power Radio radiation motor (3.10.1 chapter) 2.Without permission, companies, traders or users may not change the frequency, increase power or change the characteristics and functions of the original design. 3.This equipment belongs to the module certification can be applied to various platforms NCC :
Subject Marketing Name Model No. Description Product Specification M32 HomeKit Wi-Fi module FWS703 M32 Wi-Fi 2.4GHz module support HomeKit Rev 1.0 Page 10 of 11 Subject Marketing Name Model No. Description Product Specification M32 HomeKit Wi-Fi module FWS703 M32 Wi-Fi 2.4GHz module support HomeKit Rev 1.0 Page 11 of 11 Revision 1.0 Date 2018/8 Editor Chris First release. Remark