ISM43362-M3G-L44 Product Specification
INVENTEK SYSTEMS
ISM43362-M3G-L44
eS-WiFi™
(embedded Serial-to-WiFi)
802.11 b/g/n + MCU + Certified Antenna
Module Data Sheet
DOC-DS-20023-4.2.1
Page 1
Inventek Systems
ISM43362-M3G-L44 Product Specification
Table of Contents
1
2
GENERAL DESCRIPTION ................................................................................................... 4
PART NUMBER DETAIL DESCRIPTION .......................................................................... 5
2.1
Ordering Information ...................................................................................................... 5
3
GENERAL FEATURES ......................................................................................................... 6
3.1
Limitations ...................................................................................................................... 6
3.2
Regulatory Compliance .................................................................................................. 6
3.3
FCC and IC User’s Manual Statements: ......................................................................... 7
4
COMPLEMENTARY DOCUMENTATION ...................................................................... 10
4.1
Inventek Systems .......................................................................................................... 10
5
SPECIFICATIONS ............................................................................................................... 10
5.1
Module Architecture ..................................................................................................... 10
5.2
External Antenna Connections ..................................................................................... 11
5.3
Mechanical Specifications ............................................................................................ 11
5.4
Environmental Specifications ....................................................................................... 12
6
HARDWARE ELECTRICAL SPECIFICATIONS ............................................................. 12
6.1.1 Absolute Maximum Ratings ..................................................................................... 12
6.1.2 Recommended Operating Ratings ............................................................................ 12
7
POWER CONSUMPTION ................................................................................................... 13
7.1.1 Power Management Modes....................................................................................... 13
7.1.2 Stop Mode ................................................................................................................. 13
8
PIN OUT ............................................................................................................................... 14
8.1.1 Detailed Pin Description ........................................................................................... 15
8.1.2 Configuration Pins: ................................................................................................... 16
*Requires a 10K ohm pull down .............................................................................................. 16
9
FIRMWARE UPGRADES DURING DEVELOPMENT .................................................... 16
10 SERIAL HOST INTERFACES AVAILABLE .................................................................... 16
10.1 UART ............................................................................................................................ 17
10.1.1 Data Mode ............................................................................................................. 17
10.1.2 Flow Control ......................................................................................................... 17
10.1.3 Supported Baud Rates ........................................................................................... 17
10.1.4 Default Serial Configuration ................................................................................. 17
10.2 SPI (Serial Peripheral Interface Bus) ............................................................................ 17
10.2.1 SPI Communication Overview: ............................................................................ 18
10.2.2 SPI Command Phase: ............................................................................................ 19
10.2.3 SPI Endian Example: ............................................................................................ 19
10.2.4 SPI Data Phase: ..................................................................................................... 21
10.2.5 SPI Asynchronous Messages: ............................................................................... 21
10.2.6 SPI AC Characteristics: ........................................................................................ 22
DOC-DS-20023-4.2.1
Page 2
Inventek Systems
ISM43362-M3G-L44 Product Specification
10.3 USB ............................................................................................................................... 22
10.4 GPIO ............................................................................................................................. 22
10.5 ADC’s ........................................................................................................................... 22
11 Wi-Fi RF SPECIFICATION................................................................................................. 23
11.1.1 RF Specification.................................................................................................... 23
12 ANTENNA PATTERNS ...................................................................................................... 24
12.1 External Antenna .......................................................................................................... 24
12.2 PCB Etch Antenna Gain on the Evaluation Board ....................................................... 25
12.3 Far field Directivity....................................................................................................... 26
13 ON BOARD PROCESSOR .................................................................................................. 27
14 ISM43362-M3G-L44 FOOTPRINT ..................................................................................... 28
14.1 Module’s dimensions top view (mm) .......................................................................... 28
14.2 PCB recommended footprint top view (mm)............................................................... 28
15 TYPICAL APLLICATION CIRCUIT ................................................................................. 29
15.1 Reference Schematic (EVB) ......................................................................................... 30
15.2 USB to UART ............................................................................................................... 31
15.3 Connecting Microcontroller to eS-WiFi UART ........................................................... 32
15.4 JTAG and Reset Connections ....................................................................................... 33
15.5 eS-WiFi Programming Options .................................................................................... 34
15.6 eS-WiFi USB Direct Connection Option ...................................................................... 34
16 PRODUCT COMPLIANCE CONSIDERATIONS ............................................................. 35
17 REFLOW PROFILE ............................................................................................................. 36
18 PACKING INFORMATION ................................................................................................ 37
18.1 MSL Level / Storage Condition .................................................................................... 37
18.2 Device baking requirements prior to assembly............................................................. 38
Module’s Assembly Instructions .............................................................................................. 38
19 REVISION CONTROL ........................................................................................................ 39
20 CONTACT INFORMATION ............................................................................................... 39
DOC-DS-20023-4.2.1
Page 3
Inventek Systems
ISM43362-M3G-L44 Product Specification
1 GENERAL DESCRIPTION
The Inventek ISM43362-M3G-L44 is an embedded Serial WiFi (eS-WiFiTM), wireless
Internet Connectivity device. The Wi-Fi module hardware consists of an STM M3
Cortex host processor, integrated antenna (or optional external antenna) and Cypress
Wi-Fi device. The module provides UART, USB and SPI interfaces enabling connection
to an embedded design. The Wi-Fi module requires no operating system and has a
completely integrated TCP/IP Stack that only requires Inventek’s IWIN (Inventek
Wireless Interoperability Network),AT commands to establish connectivity for your
wireless product, minimizing development time, testing routines and certification. The
low cost, small foot print (14.5 mm x 30 mm) and ease of design-in make it ideal for a
range of embedded applications. The module hardware can be used with Inventek’s
IWIN AT Command set or with Cypress’s WICEDTM SDK.
Summary of Key Features:
802.11 b/g/n compliant based on Cypress MAC/Baseband/Radio device.
Fully contained TCP/IP stack minimizing host CPU requirements.
Configurable using IWIN AT commands.
Host interface: UART, SPI, or USB-HID.
Network features: ICMP (Ping), ARP, DHCP,TCP, UDP.
Low power operation (3.3V supply) with built-in low power modes.
Secure Wi-Fi authentication WEP-128, WPA-PSK (TKIP), WPA2-PSK.
Proven Interoperability … Connects with other vendor’s b/g/n Access Points in the
Wireless LAN.
Supported by Cypress WICEDTM SDK.
Typical Applications:
PDA, Pocket PC, computing devices.
Building automation and smart energy control.
Industrial sensing and remote equipment monitoring.
Warehousing, logistics and freight management.
PC and gaming peripherals.
Printers, scanners, alarm and video systems.
Medical applications including patient monitoring and remote diagnostics.
DOC-DS-20023-4.2.1
Page 4
Inventek Systems
ISM43362-M3G-L44 Product Specification
2 PART NUMBER DETAIL DESCRIPTION
2.1 Ordering Information
ISM43362-M3G-L44-X X X X – C.Z.Z.Z.Z
IWIN AT Command SW Version
C and 4-digit sw version number: z.z.z.z
Interface:
Blank=UART
SPI=SPI
Antenna:
E = Etched Antenna
U = U.FL External Antenna
[Both eS-WiFi options are FCC/CE/IE/Japan certified].
Evaluation Boards
eS-WiFi-43362 EVB
Inventek eS-WiFi
(embedded Serial Wi-Fi),
Evaluation Board, USB
cable, with ISM43362-M3GL44 module.
ISMART-43362 EVB
Inventek ISMART (Inventek
Systems Module ARduino
Test), EVB with ISM43362M3G-L44 module.
USB
Com.
Port
(UART)
& JTAG
USB to
eS-WiFi
ISM43362-M3G-L44 Evaluation
Board
USB
Com.
Port
(UART)
& JTAG
ISM43362-M3G-L44 Evaluation
Board
DOC-DS-20023-4.2.1
Page 5
Inventek Systems
ISM43362-M3G-L44 Product Specification
3 GENERAL FEATURES
Based on the Cypress BCM43362 MAC/Baseband/Radio device.
Supports Cypress WICED SDK.
CPU ARM Cortex™-M3 32-bit RISC core from ST Microelectronics.
Host UART, SPI, or USB-HID interface.
IEEE 802.11n D7.0 -OFDM-72.2 Mbps -single stream w/20 MHz, Short GI
IEEE 802.11g (OFDM 54 Mbps)
IEEE 802.11b (DSSS 11Mbps)
IEEE 802.11i (Security)
o
o
WPA (Wi-Fi Protected Access) –PSK/TKIP
WPA2 (Wi-Fi Protected Access 2)- AES/CCMP/802.1x Authentication
Inputs +3.3 V tolerant
5 GPIO, 5 ADC (Note: SPI interface utilizes ADC pins.)
The devices operate from a 3.0 to 3.6 V power supply.
-40 to +85 °C temperature range.
Power-saving mode allows the design of low-power applications.
Lead Free Design which is compliant with ROHS requirements.
EMI/EMC Metal Shield for best RF performance in noisy environments and to
accommodate for lower RF emissions/signature for easier FCC compliance.
FCC/CE Compliance Certification.
3.1 Limitations
Inventek Systems products are not authorized for use in safety-critical applications
(such as life support) where a failure of the Inventek Systems product would
reasonably be expected to cause severe personal injury or death.
3.2 Regulatory Compliance
CE
Regulator
FCC
IC
RoHS
Status
07P-362
10147A-362
Compliant
DOC-DS-20023-4.2.1
Page 6
Inventek Systems
ISM43362-M3G-L44 Product Specification
3.3 FCC and IC User’s Manual Statements:
OEM INSTRUCTIONS:
This module is limited to OEM installation only.
OEM integrators must ensure that the end-user has no manual instructions to remove or
install the module.. OEM’s must comply with FCC marking regulation part 15 declaration
of conformity (Section 2.925(e)).
This module is to be installed only in mobile or fixed applications (Please refer to FCC
CFR 47 Part 2.1091(b) for a definition of mobile and fixed devices).
Separate approval is required for all other operating configurations, including portable
configurations with respect to FCC CFR 47 Part 2.1093, and different antenna
configurations.
The antennas used with this module must be installed to provide a separation distance
of at least 20cm from all persons, and must not be co-located or transmit simultaneously
with any other antenna or transmitter, except in accordance with FCC multi transmitter
product procedures.
The ISM43362 Module has been designed to operate with the following antennas and
gains. Use with other antenna types or with these antenna types at higher gains is
strictly prohibited.
Manufacturer
Inventek
Inventek
Type of
Antenna
U.FL port
Antenna
Trace Antenna
Model
Gain dB
W24P-U
2.15
NA
0
Type of
Connector
Unique
Connector
Permanent
integral
DOC-DS-20023-4.2.1
Page 7
Inventek Systems
ISM43362-M3G-L44 Product Specification
Warning: changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate this equipment.
A clearly visible label is required on the outside of the user’s (OEM) enclosure stat the
following text:
Contains FCC ID: O7P-362
Contains IC: 10147A-362
This transmitter module has been certified for FCC Part 15 operation; when installed in
a host device, the host manufacturer is responsible for making sure that the host device
with the transmitter installed continues to be compliant with Part 15B unintentional
radiator requirements
DOC-DS-20023-4.2.1
Page 8
Inventek Systems
ISM43362-M3G-L44 Product Specification
Industry Canada User’s Manual Statements:
IC RSS-210/RSS-Gen NoticesOperation 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 this device.
L’opѐration est soumise aux deux conditions suivantes: (1) cet appareil ne peut pas
provoquer d’interfѐrences et (2) cet apparial doit accepter toute interfѐrence, y compris
les interfѐrences qui peuvent causer un mauvis fonctionment de l’appareil.
Under Industry Canada regulations, this radio transmitter may only operate using an
antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry
Canada. To reduce potential radio interference to other users, the antenna type and its
gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not
more than that necessary for successful communication.
Sous la rѐglementation d’Industrie Canada, ce transmetteur radio ne peut fonctionner
en utilisant une antenne d’un type et un maximum (ou moins) gain approuvѐes pour
l’ѐmetteur par Industrie Canada. Pour rѐduire le risqué d’interference aux autres
utilisateures, le type d’antenne et son gain doivent être choisis de maniѐre que la
puissance isotrpe rayonnѐe ѐquivalente (PIRE) ne dѐpasse pas ce qui est nѐcessaire
pour une communication rѐussie.
The radio transmitter has been approved by Industry Canada to operate with the
antenna types listed above with the maximum permissible gain and required antenna
impedance for each antenna type indicated. Antenna types not included in this list
having a gain greater than the maximum gain indicated for that type, are strictly
prohibited for use with this device.
Cet ѐmetteur de radio a ѐtѐ approuvѐ par Industrie Canada pour fonctionner avec les
types d’antennes ѐnumѐrѐes ci-dessus avec le gain maximal admissible et impѐdance
d’antenna requise pour chaque type d’antenne indiquѐ. Types d’antennes ne figurant
pas dans cette liste, ayant un gain supѐrieur au gain maximum indiquѐ pour ce type,
sont strictement interdites pour l’utilisation avec cet appareil.
DOC-DS-20023-4.2.1
Page 9
Inventek Systems
ISM43362-M3G-L44 Product Specification
4 COMPLEMENTARY DOCUMENTATION
4.1 Inventek Systems
Evaluation Boards: http://www.inventeksys.com/products-page/wifi-eval-kits/ism43362m3x-evb-e-wi-fi-evaluation-board/
o ISM43362-M3G-L44 eS-WiFi Data Sheet
o eS-WiFi EVB Quick Start Guide
o eS-WiFi EVB User’s Manual
o eS-WiFi EVB PC Demo software (includes EVB Drivers and Firmware)
o eS-WiFi EVB Demo Software Help
o ISMART Arduino EVB option.
IWIN AT Command Set
o AT Command Set User’s Manual
o AT Command Set Quick Reference Guide
o AT Command Sample scripts (E-mail, Cloud..)
Firmware
OrCAD Schematic Symbol
PADS Land Pattern
FCC Test Report
5 SPECIFICATIONS
5.1 Module Architecture
Figure 1 Inventek’s ISM43362-M3 General Block Diagram
Note:
1. Antenna Options: Integrated microstrip antenna or U.FL connector for an external antenna.
2. ADC1-ADC5 can also be used as SPI port
DOC-DS-20023-4.2.1
Page 10
Inventek Systems
ISM43362-M3G-L44 Product Specification
5.2 External Antenna Connections
ISM43362-M3G-L44-U module is designed for use with an external antenna via a
connection using the U.FL connector.
Item
Description
Connector
U.FL series
Manufacturer I-PEX Co., Ltd.
Part No.
20279-001E-01
Height
1.25 mm
Width
2 mm
DC
3.0 – 5.0 V
Table 1 On-Board Antenna Connector
5.3 Mechanical Specifications
The Physical dimensions of this eS-WiFi Module are as follow:
* Keep out
Area
Figure 2: ANTENNA IS IN ETCH
”Keep out” area should ideally have the antenna hanging off the side of the PCB for
best performance. If you do not hang the antenna off the PCB, ensure no PCB ground
planes or traces are placed under the antenna (keep out area). Surrounding metal will
affect the antenna performance. The ISM43362-M3G-L44- U and -E have the same
footprint. Inventek recommends a 9mm ”Keep Out” on all three sides.
* External Antenna does not require “keep out” area
DOC-DS-20023-4.2.1
Page 11
Inventek Systems
ISM43362-M3G-L44 Product Specification
Items
Description
ISM43362-M3G-L44-E /U
Length
Width
Height
Package
30 mm (-/+0.5 mm)
14.7 mm (-/+0.5 mm)
2.5 ± 0.2 mm
44 pin LGA
5.4 Environmental Specifications
Item
Operating temperature range
Storage temperature range
Humidity
Description
-40 deg. C to +85 deg. C
-40 deg. C to +85 deg. C
95% max non-condensing
Note 1: The ISM43362-M3G supports a functional operating range of -40°C to +85°C.
However the optimal RF performance specified in this data sheet is only guaranteed for
temperatures from -10°C to +65°C
6 HARDWARE ELECTRICAL SPECIFICATIONS
6.1.1 Absolute Maximum Ratings
Symbol
Description
Min
Max
Unit
VDD
Input supply Voltage
-0.4
3.7
V
VBAT
Battery Backup
-0.4
3.6
V
6.1.2 Recommended Operating Ratings
Symbol
Min.
Typ.
Max.
Unit.
VDD
3.0
3.3
3.6
V
VBAT
3.0
3.3
3.6
V
DOC-DS-20023-4.2.1
Page 12
Inventek Systems
ISM43362-M3G-L44 Product Specification
7 POWER CONSUMPTION
7.1.1 Power Management Modes
Power
Management
Modes
WiFi On/Off
WiFi Power Save
On/Off
WiFi Beacon listen
Skip MCU Sleep
Stop Mode
Description
Current
IWIN AT
Commands
MCU is powered on,
but WiFi radio can be
37 mA
powered off
After you join a
network, Power Save
mode can be
50 mA
entered. The unit will
(160 mA burst of not
automatically wake
more than 5ms)
up when data is
ready. AP will buffer
data
You can extend
Beacon set to 1, ~7.2mA
beacon time to save Beacon set to 1, ~4.7mA
additional power
Beacon set to 1, ~4.2mA
while sleeping the
One Second Sleep
MCU
10 mA
ZP=3,0 -Stop
ZP=3,1 -Start
ZP=1,0 -Off
ZP=1,1 -ON
ZP=2,1; ZP=6
ZP=2,5;ZP=6
ZP=2,10;ZP=6
Note:
Typical current when WiFi is connected to a network is 110 mA. During transmit the
maximum current can reach 340 mA burst of not more than 5ms.
Power Save mode does not work when in Access mode. In order to save power, IWIN
AT Commands, ZP=2 and ZP=6, can be used to allow the MCU to sleep and reduce the
beacon intervals by turning the radio on/off at a duty cycle.
The eS-WiFi modules support multiple power saving modes. Please see the power
savings application note for more detailed information. For power critical applications
please contact Inventek for alternative low power modes.
7.1.2 Stop Mode
Stop Mode is initiated by software and exited by the an input on the Wakeup pin.
(Wakeup pin is 3.3 volt tolerant). The wakeup pin is an external interrupt pin that on the
rising edge will cause the module to exit stop mode. It is an edge trigged input. It is
critical to have no glitch on this line.
DOC-DS-20023-4.2.1
Page 13
Inventek Systems
ISM43362-M3G-L44 Product Specification
8 PIN OUT
DOC-DS-20023-4.2.1
Page 14
Inventek Systems
ISM43362-M3G-L44 Product Specification
8.1.1 Detailed Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Type
Pin Definition
G GND
I VDD
G GND
I/O TMS
I/O TCK
I/O TDI
I/O TD0
I/O TDRSTN
I/O ADC 4 / SPI_MOSI
I/O ADC 3 / SPI_MISO
I/O ADC 2 / SPI_SCK
I/O ADC 1 / SPI_SSN
I/O ADC 0 (I)/ DATARDY (0)
I VDD
I VBAT
I Wakeup
G GND
I DP
I/O DM
G GND
I/O RX
I/O TX
I/O GPIO 0
I/O GPIO 1
I/O GPIO 2
I/O GPIO 3
I/O GPIO 4
I CFGO
I CFG1
O RES
I RES
I RES
I BOOT 0
I RSTN
G GND
G GND
Descriptions
Ground
3.3V
Ground
JTAG
JTAG
JTAG
JTAG
JTAG
ADC Input Pins or SPI Host Interface
(Refer to SPI Section 10.2)
3.3V
3.3V
(Refer to Section 7.1.2)
Ground
USB Data Plus (Refer to Table 8.1.2)
USB Data Minus (Refer to Table 8.1.2 )
Ground
UART Receive (Refer to section 10.1 )
UART Transmit (Refer to section 10.1 )
General Purpose Interface Pins
Configuration Pin 0 (Refer to Table 8.1.2 )
Configuration Pin 1 (Refer to Table 8.1.2 )
Reserved
Reserved
Reserved
Enable On Board Micro Boot Loader
Reset (See STM32F205 NRST specification )
Ground
Ground
DOC-DS-20023-4.2.1
Page 15
Inventek Systems
ISM43362-M3G-L44 Product Specification
Pin No. Type
Pin Definition
37
G GND
38
G GND
39
G GND
40
G GND
41
G GND
42
G GND
43
G GND
44
G GND
Descriptions
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
8.1.2 Configuration Pins:
CFGO
1
1
0*
0*
CFG1
Internally Pulled High
1
UART ( NC)
0*
SPI
1
USB VCP
0*
USB HID
*Requires a 10K ohm pull down
Note: These pins are not used in the currently available production firmware. Modules are
preprogrammed with separate and specific firmware that supports either UART, SPI or USB
HID. In future versions of the firmware these pins will be used to select the host interface type.
9 FIRMWARE UPGRADES DURING DEVELOPMENT
We recommend using a JTAG 10 pin header or directly connecting to the JTAG pins
on the module for updating. Use the ST-Link to flash the ST micro.
Below are links to the ST-Link and JTAG header at Digikey:
STLink:
http://www.digikey.com/product-detail/en/ST-LINK%2FV2/497-10484-ND/2214535
The 10 to 20 pin JTAG adapter is Digi-Key PN 726-1193-ND:
https://www.digikey.com/products/en?keywords=726-1193-ND
*JTAG Firmware Update Note can be found at www.inventeksys.com
10 SERIAL HOST INTERFACES AVAILABLE
UART, SPI and USB-HID host interfaces are supported and unique firmware is required for each
interface.
DOC-DS-20023-4.2.1
Page 16
Inventek Systems
ISM43362-M3G-L44 Product Specification
10.1 UART
A universal asynchronous receiver / transmitter (UART) with 3.3v logic levels is available.
10.1.1
Data Mode
When the eS-WiFi module is interfaced serially, the serial interface needs to be configured
for 8 bit data, no parity, and one stop bit -- (8-n-1).
10.1.2
Flow Control
The eS-WiFi module and WICED do not require or support Flow Control, so Flow Control
should not be implemented.
10.1.3
Supported Baud Rates
The eS-WiFi module uses USART1 (PA9 and PA10 of the STM32F205) and the following
serial baud rates are supported: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200,
230400, 460800, 921600, 1152000, 1382400, 1612800, 1834200, 2073600. USART1 can be
run at higher rates but have not been tested with the IWIN AT command set.
10.1.4
Default Serial Configuration
The eS-WiFi module is shipped with the default serial configuration of 115200 baud, 8 data bits, no
party, and 1 stop bits.
10.2 SPI (Serial Peripheral Interface Bus)
The eS-WiFi module supports SPI (Contact Inventek for specific firmware.)
DOC-DS-20023-4.2.1
Page 17
Inventek Systems
ISM43362-M3G-L44 Product Specification
SPI Slave Interface:
Clock rate:
20MHz max.
Width:
16-bit
Mode:
0
Endian:
Little
Note: All commands to the eS-WiFi module must be post-padded with 0x0A (Line Feed) to an
even number of bytes.
All data from eS-WiFi module will be post-padded with 0x15(NAK) to an even number of bytes.
10.2.1
SPI Communication Overview:
With the exception of initial cursor, all communication with the module happens synchronously.
In other words, the SPI Master must always poll for every asynchronous event.
A typical command flow is provided flow. This is an example using the Direct Connect Soft AP
with a TCP communication server.
SPI Master
SPI Slave (eS-WiFi)
Description
“\r\n> “
Prompt
“AS=0,ABC\r\x0A”
"\r\n\r\nOK\r\n> "
Set Access Point SSID
“AD\r\ x0A”
"\r\n\r\nOK\r\n> "
Start AP - Direct Mode
"P1=0\r\ x0A”
"\r\n\r\nOK\r\n> "
Set TCP Protocol
"P4=2000\r"
"\r\n\r\nOK\r\n> "
Set TCP Port
"P5=1\r\ x0A”
"\r\n\r\nOK\r\n> "
Start TCP COMM Server
"MR\r\ x0A”
"\r\n[SOMA]...[EOMA]\r\nOK\r\n> Read Messages
"
Note: [SOMA] - Start of Message Asynchronous, [EOMA] - End Of Message Asynchronous
DOC-DS-20023-4.2.1
Page 18
Inventek Systems
ISM43362-M3G-L44 Product Specification
The SPI communication is always 16-bit and can be sustained up to 20MHz. The eS-WiFi
module after power up or reset will raise CMD/DATA READY pin to signal that the first Data
Phase has started. In this mode, the SPI Host must fetch the cursor. As provided by the example
above, this is the only time host needs fetch data from slave without issuing a command.
The Host will initiate a SPI cycle (lower SSN) and clock out 0x0A (Line Feed) until the
CMD/DATA READY pin lowers signaling the end of the Data Phase. The data received will be
0x0d (CR) 0x0A (LF) 0x3E (>) 0x20 (SP).
The next rising edge of the CMD/DATA READY pin signals the Command Phase.
10.2.2
SPI Command Phase:
The Command Phase indicates the eS-WiFi module is ready to accept an IWIN AT Command.
The command must include all delimiters and data for the command.
Ex.
S3=0010\r0123456789
The command must also be sent as one continuous SPI cycle, that is SSN must stay low for the
complete command, delimiters, and data.
The Host will initiate a SPI cycle (lower SSN) and clock out the command, delimiters and
associated data and raise the NSS signal to indicated that the all data has be sent. As result of the
NNS raising the eS-WiFi module will lower the CMD/DATA READY pin to signal the end
Command Phase.
The data that will be clocked back to the Host will be 0x15 (NAK).
10.2.3
SPI Endian Example:
The data is in little endian (0x15 0x15 0x0A 0x0D 0x20 0x3E) and needs to be converted back to
big endian with the leading 0x15’s removed. Please remember that this is a 16-bit interface so
the endian conversion is done one 16-bit at a time.
DOC-DS-20023-4.2.1
Page 19
Inventek Systems
ISM43362-M3G-L44 Product Specification
The endian requirement extends to the command being sent to the module. So a “I?\r\x0A”
command would be sent as 0x3F 0x49 0x0A 0x0D.
DOC-DS-20023-4.2.1
Page 20
Inventek Systems
ISM43362-M3G-L44 Product Specification
10.2.4
SPI Data Phase:
The Data Phase indicates the eS-WiFi module has data ready for the Host to read. The eS-WiFi
module will raise CMD/DATA READY and the Host will initiate a SPI cycle (lower SSN) and
clock out 0x0A (Line Feed) until the CMD/DATA READY pin lowers signaling the end of the
Data Phase.
10.2.5
SPI Asynchronous Messages:
There are certain situations in which the eS-WiFi will issue asynchronous messages:
Soft AP (AO/AD Commands), when a device connects to the Soft AP a DHCP assigned
message will issued.
Ex. [DHCP ] Assigned 00:00:00:00:00:00 has 192.168.10.100
TCP/UDP Communication Servers (P5=1), when a client connects to the server a
connected message will be issued.
Ex. [TCP SVR] Waiting on connection...
[TCP SVR] Accepted 192.168.10.100:2000
[UDP SVR] Accepted 192.168.10.100:2000
With the SPI host interface being synchronous the Host must poll for these messages. This can
be done by using the MR (Message Read) command or when a Communication connection the
issuing of a R0 command will read all asynchronous message and the result of the R0 command.
The asynchronous messages are delineated by the Start Of Message Asynchronous ([SOMA])
and End Of Message Asynchronous ([EOMA]) markers.
DOC-DS-20023-4.2.1
Page 21
Inventek Systems
ISM43362-M3G-L44 Product Specification
10.2.6
SPI AC Characteristics:
Symbol
Tf(sck)
Tc(sck)
Tsu(sck)
Tc(byte)
Tsu(ssn)
Th(ssn)
Min.
Typ.
Max.
20 MHz
50 ns
15 us
8 * Tc(sck)
4 us
3 us
10.3 USB
The eS-WiFi module supports a USB HID interface. (Contact Inventek for specific firmware.)
10.4 GPIO
Each of the GPIO pins can be configured by the IWIN AT command set as Button, LED, Digital
input or Digital output. The outputs are 3.3V CMOS and reference the IWIN AT Command Set
User manual to configure.
10.5 ADC’s
One 12-bit analog-to-digital converter is available. Reference the IWIN AT Command Set
User’s manual for configuration.
DOC-DS-20023-4.2.1
Page 22
Inventek Systems
ISM43362-M3G-L44 Product Specification
11 Wi-Fi RF SPECIFICATION
11.1.1
RF Specification
Conditions: VDD=3.3V; VDDIO=3.3V; TEMP: 25°C
Feature
WLAN Standard
Frequency Range
Number of Channels
Modulation
*Output Power
Receive Sensitivity
(11n,20MHz)
@10% PER
Receive Sensitivity
(11g) @10% PER
Receive Sensitivity
(11b) @10% PER
Data Rates
Description
IEEE 802.11b/g/n, Wi-Fi compliant
2.400 GHz ~ 2.497 GHz (2.4 GHz ISM Band)
Ch1 ~ Ch14
802.11 g/n : OFDM /64-QAM,16-QAM, QPSK, BPSK
802.11b : CCK, DQPSK, DBPSK
802.11b /11Mbps : 18* dBm ± 1.5 dB
802.11g /54Mbps: 18* dBm ± 1.5 dB
802.11n /72Mbps: 18* dBm ± 1.5 dB
- MCS=0
PER @ -86 dBm, typical
- MCS=1
PER @ -85 dBm, typical
- MCS=2
PER @ -85 dBm, typical
- MCS=3
PER @ -84 dBm, typical
- MCS=4
PER @ -80 dBm, typical
- MCS=5
PER @ -78 dBm, typical
- MCS=6
PER @ -72 dBm, typical
- MCS=7
PER @ -69 dBm, typical
- 6Mbps
PER @ -89 dBm, typical
- 9Mbps
PER @ -88 dBm, typical
- 12Mbps
PER @ -88 dBm, typical
- 18Mbps
PER @ -87 dBm, typical
- 24Mbps
PER @ -83 dBm, typical
- 36Mbps
PER @ -80 dBm, typical
- 48Mbps
PER @ -75 dBm, typical
- 54Mbps
PER @ -72 dBm, typical
- 1Mbps
PER @ -93 dBm, typical
- 2Mbps
PER @ -91 dBm, typical
- 5.5Mbps
PER @ -89 dBm, typical
- 11Mbps
PER @ -87 dBm, typical
802.11b : 1, 2, 5.5, 11Mbps
802.11g : 6, 9, 12, 18, 24, 36, 48, 54Mbps
DOC-DS-20023-4.2.1
Page 23
Inventek Systems
ISM43362-M3G-L44 Product Specification
Data Rate
(20MHz ,Long GI,800ns)
802.11n: 6.5, 13, 19.5, 26, 39, 52, 58.5, 65Mbps
Data Rate
(20MHz ,short GI,400ns)
802.11n : 7.2, 14.4, 21.7, 28.9, 43.3, 57.8, 65,72.2Mbps
Maximum Input Level
802.11b : -10 dBm
802.11g : -10 dBm
*Maximum output power can be set to 20 dBM ± 1.5 dB with firmware modifications.
12 ANTENNA PATTERNS
12.1 External Antenna
The Inventek U.FL PCB antenna has passed FCC and CE testing. The part number is W24P-U. It
is a 2.4 GHz PCB antenna with a U.FL connector.
The eS-Wifi family of Wi-Fi products comes with two different antenna offerings:
ISM43362-M3G-L44-E
ISM43362-M3G-L44-U
PCB Etched Antenna
U.FL connector for external antenna
The Inventek W24P-U PCB antenna is FCC and CE certified and can be found on the Inventek
Website.
DOC-DS-20023-4.2.1
Page 24
Inventek Systems
ISM43362-M3G-L44 Product Specification
Inventek has also certified an external Rubber Antenna with a length of approximately 9 inches
and 5 dB of gain that has certification for FCC, IC and CE. Please contact Inventek for further
details.
12.2 PCB Etch Antenna Gain on the Evaluation Board
The eS-WiFi PCB etched antenna performance is shown below. This etched antenna is FCC and
CE certified and the radiation patterns shown below are based on simulation using evaluation
boards that have a ground plane with dimensions of 71mm x 48mm.
DOC-DS-20023-4.2.1
Page 25
Inventek Systems
ISM43362-M3G-L44 Product Specification
12.3 Far field Directivity
DOC-DS-20023-4.2.1
Page 26
Inventek Systems
ISM43362-M3G-L44 Product Specification
13 ON BOARD PROCESSOR
Reference the STM32F205 specification from ST Microelectronics for UART, SPI (Slave Mode)
and USB Device.
http://www.st.com/en/microcontrollers/stm32f2-series.html?querycriteria=productId=SS1575
DOC-DS-20023-4.2.1
Page 27
Inventek Systems
ISM43362-M3G-L44 Product Specification
14 ISM43362-M3G-L44 FOOTPRINT
14.7 mm
14.1 Module’s dimensions top view (mm)
Figure 3 Module Dimensions- Top View
.
14.7 mm
14.2 PCB recommended footprint top view (mm)
Figure 4 PCB Recommended Foot print - Top View
DOC-DS-20023-4.2.1
Page 28
Inventek Systems
ISM43362-M3G-L44 Product Specification
15 TYPICAL APLLICATION CIRCUIT
This is the minimum number of wires required to be connected to a host microcontroller for
operation in UART mode. It is recommended that the JTAG and BOOT0 lines are also brought
out for future firmware upgrades.
NOTE: Please place a 10-15uF Bulk CAP as close to the module as possible to
VDD_3V3_WIFI
DOC-DS-20023-4.2.1
Page 29
Inventek Systems
ISM43362-M3G-L44 Product Specification
15.1 Reference Schematic (EVB)
Typical application circuits please refer to schematic below. For a *.pdf version please visit the
ISM43362 eS-WiFi evaluation board website:
http://3225fd3789f8922a800865fd.mdeb1esylkbkqnmp3v.maxcdn-edge.com/wpcontent/uploads/ISM43362_EVB_Schematic.pdf
DOC-DS-20023-4.2.1
Page 30
Inventek Systems
ISM43362-M3G-L44 Product Specification
15.2 USB to UART
DOC-DS-20023-4.2.1
Page 31
Inventek Systems
ISM43362-M3G-L44 Product Specification
15.3 Connecting Microcontroller to eS-WiFi UART
DOC-DS-20023-4.2.1
Page 32
Inventek Systems
ISM43362-M3G-L44 Product Specification
15.4 JTAG and Reset Connections
DOC-DS-20023-4.2.1
Page 33
Inventek Systems
ISM43362-M3G-L44 Product Specification
15.5 eS-WiFi Programming Options
15.6 eS-WiFi USB Direct Connection Option
DOC-DS-20023-4.2.1
Page 34
Inventek Systems
ISM43362-M3G-L44 Product Specification
16 PRODUCT COMPLIANCE CONSIDERATIONS
RoHS: Restriction of Hazardous Substances (RoHS) directive has come into force since
1st July 2006 all electronic products sold in the EU must be free of hazardous materials,
such as lead. Inventek is fully committed to being one of the first to introduce lead-free
products while maintaining backwards compatibility and focusing on a continuously high
level of product and manufacturing quality.
EMI/EMC: The Inventek module design embeds EMI/EMC suppression features and
accommodations to allow for higher operational reliability in noisier (RF) environments
and easier integration compliance in host (OEM) applications.
FCC/CE: The module will be in compliance test for FCC/CE
DOC-DS-20023-4.2.1
Page 35
Inventek Systems
ISM43362-M3G-L44 Product Specification
17 REFLOW PROFILE
Reference the IPC/JEDEC standard.
Peak Temperature:
工商网监
湘ICP备2023018690号
