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ReZolt® RZ707 Em-Fi
ReZolt Confidential
TM
User Manual
Module
Revision 0.1
Aug 13, 2012
ReZolt RZ707 Em-Fi Module
User Manual 1 RZ707MS-UM-081312
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ReZolt reserves the right to make corrections, modifications, enhancements,
improvements, and other changes to its products and platforms at any time and to
discontinue any product or platform without notice.
ReZolt assumes no liability for applications assistance or customer product design.
Customers are responsible for their products and applications using ReZolt products.
To minimize the risks associated with customer products and applications, customers
should provide adequate design and operating safeguards.
ReZolt does not warrant or represent that any license, either express or implied, is
granted under any ReZolt patent right, copyright, mask work right, or other intellectual
property right relating to any combination, machine, or process in which ReZolt
products or platforms are used. Information that ReZolt publishes regarding third-party
products or services does not constitute a license from ReZolt to use such products or
services or a warranty or endorsement thereof. Use of such information may require a
license from a third party under the patents or other intellectual property of the third
party, or a license from ReZolt under the patents or other intellectual property of
ReZolt.
ReZolt assumes no liability whatsoever, and provides no warranty, express or implied,
relating to the sale or license of ReZolt products and platforms or engineering services
provided by ReZolt.
ReZolt products and platforms are not authorized for use in safety-critical applications
(such as medical, life-saving or life-sustaining applications) where a failure of the ReZolt
product would reasonably be expected to cause severe personal injury or death.
Customers represent that they have all necessary expertise in the safety and regulatory
ramifications of their applications, and acknowledge and agree that they are solely
responsible for all legal, regulatory and safety-related requirements concerning their
products.
ReZolt may make changes to the product specifications and descriptions at any time
without notice.
ReZolt Confidential
Revision 0.1
Dec 1, 2011
ReZolt RZ707 Em-Fi Module
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Table of Contents
1. Introduction ........................................................................................................................................ 4
1.1 Intended Audience and Reading Suggestions ........................................................................ 4
1.2 Scope of the Document .............................................................................................................. 4
2 RZ707MS Overview ........................................................................................................................... 5
2.1 Target Applications .................................................................................................................... 5
2.2 Highlights .................................................................................................................................... 5
2.3 Features ....................................................................................................................................... 5
2.4 System Architecture ................................................................................................................... 6
3 Pin Description ................................................................................................................................... 8
4 Electrical Characteristics ................................................................................................................... 9
4.1 Absolute Maximum Ratings ..................................................................................................... 9
4.2 Operating Conditions ................................................................................................................ 9
4.3 Low-Power State Characteristics ............................................................................................. 9
5 Installation Guidelines .................................................................................................................... 11
5.1 Layout Guidelines .................................................................................................................... 11
5.2 Surface Mount Assembly ......................................................................................................... 12
6 Limitations ........................................................................................................................................ 13
Revision History ....................................................................................................................................... 14
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1. Introduction
ReZolt provides an embedded Wi-Fi module, RZ707MS, to enable low-power Embedded Wi-Fi
(Em-FiTM) communication on deeply embedded devices. RZ707MS is a component of Em-Fi
Platform from ReZolt Corporation. This document describes hardware specification of the
module, as well as software usage
1.1 Intended Audience and Reading Suggestions
This document is intended for customers of ReZolt RZ707MS module, usually mounted on
RZ707ES-LPS evaluation board.
1.2 Scope of the Document
This document describes detailed instructions to measure RF parameters of ReZolt RZ707MS
module, mounted on a RZ707ES-LPS evaluation board, including
Device driver installation and programming the RZ707ES-LPS board with the firmware
for manufacturing test.
Setting up the test environment.
RF commands to initiate transmission and reception testing procedures, with various RF
parameters.
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2 RZ707MS Overview
RZ707MS is member of a family of low power embedded Wi-Fi modules from ReZolt
Corporation. It is a component of ReZolt Em-Fi Platform and along with RZ707-ES-LPS
Evaluation Board and UbzrvrTM Device & Sensor Management System, offers an end-to-end
solution that is easy-to-use, modular, and scalable thereby allowing cost-effective and rapid
engineering development for OEM embedded Wi-Fi products.
Em-Fi Software provides an option to run customer applications on a host processor on the
customer board with simple serial-to-Wi-Fi commands. Em-Fi Software also allows the
customer applications to run on an RZ707 Module using the RZ707SDK.
2.1 Target Applications
Energy Monitoring and Management
Logistics and Supply Chain Management
Healthcare
Industrial and Building Automation
2.2 Highlights
802.11b/g/n with complete Wi-Fi functionality
Low power and best in class networking and other features in easy-to-use, modular, scalable
software
Rich interfaces allow interfacing with a range of sensors and other peripherals
ARM Cortex M3-based microcontroller with processing and memory headroom
Supports fine-grained power management for low power operation and long battery life
Optional on-module serial Flash facilitates data logging and firmware upgrade
2.3 Features
Module
Based on Broadcom BCM43362 Wi-Fi and ST Micro STM32F205 Cortex M3 microcontroller
Small form factor: 1.24 in X 0.85 in (31.5 mm X 21.6 mm)
Rich in interfaces: Up to three UART, three SPI, two I2S, two I2C, one USB, JTAG and
GPIOs, ADCs, DACs and timers
On-board chip antenna or external antenna using u.FL connector
Standby current < 5uA, transmission current < 330 mA, receiving current < 80 mA
Worldwide regulatory compliance
Wi-Fi
Single stream 802.11n support for 20 MHz channel bandwidth provides rates up to 65 Mbps
WPA/WPA2 Personal for powerful encryption and authentication
AES and TKIP acceleration in hardware for faster data encryption and 802.11i compatibility
802.11d, e(WMM, QoS, WMM-PS), h, i, j, k, r, w; Wi-Fi Protected Setup (WPS)
Software
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Em-Fi Software integrates Wi-Fi and network stack, including UDP, TCP/IP (IPv4), DHCP
Client and Server, ARP, DNS, FTP Client, SSL/TLS engine, HTTP/HTTPS Client and Server,
and XML parser
Run your application code on an external host microcontroller interfacing to RZ707 Module
using serial commands
Run your application on the on-board STM32F205 Cortex-M3 microcontroller using RZ707
Software Development Kit
2.4 System Architecture
RZ707MS Module consists of two main components: STM32F205RE (512KB flash, 128KB
SRAM) or STM32F205RG (1MB flash, 128KB SRAM), an ARM Cortex-M3 based 32-bit
microcontroller that runs Em-Fi Software and Broadcom BCM43362 Wi-Fi device. It also
includes an optional serial Flash (1MB or 2MB), an on-board chip antenna and a u.FL connector
for optional external antenna.
Voltage Input
RZ707 Module supports a flexible power supply. VBATT_WLAN, required for the Wi-Fi device,
can be in the range of 2.7V to 4.8V. VBATT_MICRO can be in the range of 1.65V to 3.6V. Vdd,
used by the microcontroller and the optional flash, can be in the range of 1.8V to 3.6V.
I/O Interface
STM32F205RE/RG offers a host of interfaces enabling a rich and flexible hardware design.
These include not only the standard interfaces such as UARTs, SPIs, I2C, I2S, GPIOs, ADCs,
DACs, and Timers but also USB for easy connectivity for data and provisioning.
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Radio Frequency
BCM43362 Wi-Fi device supports 802.11bgn with the latest Wi-Fi functionality including
security and provisioning and enabling a broad range of embedded Wi-Fi products.
This module operates within the frequency range between 2412 and 2464 Mhz, which
correspond to the central frequency of channel 1 and channel 11 for IEEE 802.11 b/g/n standard.
Chip Antenna
The chip antenna included on the module (which is also used for FCC test) is manufactured by
Johanson, with part number 2450AT42B100E. The datasheet of the antenna is attached to this
document.
Crystals
There are three crystals used on the module. Two crystals connected to STM32F205RG work at
16 Mhz and 32 Khz, respectively. The single crystal connected to BM43362 works at 26 Mhz.
STM32F205RG has an internal PLL circuitry, which works at 96 Mhz when it is turned on.
Radio Power
A piece of software runs on STM32F205RG to control the radio operation. By default, the
software always transmits at full power (which is used during test for FCC certificate). ReZolt
provides software API to customers in order to lower down the transmission power from the
default state, but never beyond the default state.
Specifically, following function is provided to customers in order to lower the radio transmission
power from the default number:
Status wdd_adjust_tx_power(uint8_t pwr),
where parameter pwr is in unit of dBm and always capped by the default power number when
the software processes this function call.
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Pin Name UART SPI/I2S GPIO I2C ADC DAC CAN Timer Other
1 GND GND
2 VBATT_WLAN VBATT for WLAN
3 VBATT_MICRO VBATT for Micro
4 Alarm output Alarm output GPIO
5
NRST Micro reset
6
PC0 GPIO GPIO ADC123_IN10
7 PC1 ADC GPIO ADC123_IN11
8 PC2
GPIO SPI2_MISO GPIO ADC123_IN12
9 PC3
GPIO SPI2_MOSI GPIO ADC123_IN13
10 PA0 WKUP pin
GPIO ADC123_IN0 TIM
11 PA2 ADC USART2_TX GPIO ADC123_IN2
TIM
12 GND GND
13 VDD VDD for Micro
14 PA3 ADC USART2_RX GPIO ADC123_IN3
TIM
15 PA4*
NC, used internally as
SPI1_NSS for on-module
serial flash
SPI3_NSS / I2S3_WS GPIO ADC12_IN4 DAC1_OUT
16 PA5** SPI1_SCK
GPIO ADC12_IN5 DAC2_OUT TIM
17 PA6** SPI1_MISO GPIO ADC12_IN6 TIM
18 PA7** SPI1_MOSI GPIO ADC12_IN7 TIM
19 PB0*
NC, used internally for
PwrEN of on-module
serial flash
GPIO ADC12_IN8 TIM
20 PB1 GPIO GPIO ADC12_IN9 TIM
21 PB10 USART3_TX SPI2_SCK / I2S2_CK GPIO I2C2_SCL TIM
22 PB11 USART3_RX GPIO I2C2_SDA TIM
23 GND GND
24 PB12 SPI2_NSS
USART3_CLK I2S2_WS GPIO I2C2_SMBA CAN2_RX TIM
25 PB13 SPI2_SCK
USART3_CTS I2S2_SCK GPIO CAN2_TX TIM
26 PB14 SPI2_MISO USART3_RTS GPIO TIM
27 PB15 SPI2_MOSI I2S2_SD GPIO TIM RTC_50Hz
28 PA8*
NC, used internally for
Write Protection of onmodule serial flash
USART1_CLK GPIO TIM MCO1
29 PA9 USB_DET UART1_TX GPIO TIM
30 PA10
USB_FS_ID UART1_RX GPIO TIM
31 PA11
USB_FS_DM UART1_CTS GPIO CAN1_RX TIM
32 PA12
USB_FS_DP UART1_RTS GPIO CAN1_TX TIM
33 GND GND
34 PA13 JTAG_TMS
GPIO
35 PA14 JTAG_TCK
GPIO
36 PA15 JTAG_TDI
SPI1_NSS / SPI3_NSS
/ I2S3_WS
GPIO TIM
37 PB3 JTAG_TDO
SPI1_SCK / SPI3_SCK
/ I2S3_CK
GPIO TIM
38 PB4 JTAG_TRST
SPI1_MISO /
SPI3_MISO
GPIO TIM
39 PB5 GPIO
SPI1_MOSI /
SPI3_MOSI / I2S3_SD
GPIO I2C1_SMBA CAN2_RX TIM
40 PB6
USART1_TX GPIO I2C1 SCL CAN2_TX TIM
41 PB7
USART1_RX GPIO I2C1 SDA TIM
42 BOOT0 BOOT0 switch
GPIO
43 PB8
I2C1_SCL GPIO I2C1_SCL CAN1_RX TIM
44 PB9
I2C1_SDA
SPI2_NSS / I2S2_WS
GPIO I2C1_SDA CAN1_TX TIM
45 GND GND
Alternate Functions
Function on
RZ707ES Board
3 Pin Description
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Min
Max
Unit
Storage Temperature
-40
+125
Deg. C
Supply Voltage –
VBAT_WLAN
-0.5
+6
V
Supply Voltage –
VBATT_MICRO
-0.3
+4
V
Supply Voltage – Vdd
-0.3
+4
V
Min
Typical
Max
Unit
Operating Temperature
-30
+25
+85
Deg. C
Supply Voltage –
VBATT_WLAN
2.7
3.6
4.8
V
Supply Voltage –
VBATT_MICRO
1.8
1.8 or 3.3
3.6
V
Supply Voltage – Vdd
1.65
1.8 or 3.3
3.6
V
State
Current
CPU
Clock
Registers &
SRAM
PLL &
HSE/HSI**
RTC
Clock***
RTC SRAM
Run*
27 mA
ON
Retained
ON
ON
Retained
Sleep
8 mA
OFF
Retained
ON
ON
Retained
Stop
350 uA
OFF
Retained
OFF
ON
Retained
Standby
6 uA
OFF
Lost
OFF
ON
Retained
4 Electrical Characteristics
All the interfaces available on the module are to STM32F205RE/RG microcontroller. Please
refer to the STM32F205RE/RG datasheet for further details.
4.1 Absolute Maximum Ratings
4.2 Operating Conditions
4.3 Low-Power State Characteristics
* CPU clock running at 90 MHz, executing instructions out of flash, with all peripherals disabled
except SDIO and some GPIOs
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State
Exit Methods
Wake up delay (uS)
CPU
HSI*
PLL
Total
Sleep
Any interrupt
1 0 0
1
Stop
RTC Alarm/Wkup
17
2.2
200
220
Standby
RTC Alarm/Wkup
375
2.2
200
577
** HSE: External High-Frequency Crystal, 60 uA
HSI: Internal High-Frequency RC oscillator, 1 mA
PLL: 1.3 mA
*** RTC on Internal low frequency oscillator (LSI): 0.4 uA
* If using HSE, its startup time is usually 2 ms after Vdd is stabilized
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5 Installation Guidelines
5.1 Layout Guidelines
The module footprint is shown in the above figure. There are two ways of using/connecting
antennas
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Preheat
Ramp up rate from 25 to 150C
TBD
Soak or dryout
Temperature Min (T
smin
)
TBD
Temperature Max (T
smax
)
TBD
Time (Ts) from T
smin
to T
smax
TBD
Reflow
Liquidus Temperature (TL)
TBD
Time (tL) maintained above TL
TBD
Peak temperature (Tp)
TBD
Ramp up rate from TL to Tp
TBD
Time (tp) within 5C of Tp
TBD
Ramp up rate from Tp to TL
TBD
Time 25C to Tp
TBD
To use the on-module chip antenna. In this case, the Antenna Area labeled above needs to be
kept clear of copper to ensure good RF performance.
To use external antenna, via the u.FL coax connector. In this case, it is OK to overlap the
Antenna Area with copper. However, to ensure the external antenna meets the requirements
of MIC/TELEC, the user needs to contact ReZolt Corporation with detailed specification of
the antenna.
In addition to the above guidelines, note the following suggestions:
Place external bypass capacitors as close as possible to the module pins.
To achieve better communication quality, keep metallic objects away from the antenna
(either the on-module chip antenna or external antennas) as far as possible.
5.2 Surface Mount Assembly
Table below lists recommended reflow parameters.
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6 Limitations
THIS DEVICE AND ASSOCIATED SOFTWARE ARE NOT DESIGNED, MANUFACTURED OR
INTENDED FOR USE OR RESALE FOR THE OPERATION OF APPLICATION IN A HAZARDOUS ENVIRONMENT, OR REQUIRING FAIL-SAFE PERFORMANCE, OR IN WHICH THE
FAILURE OF PRODUCTS COULD LEAD DIRECTLY TO DEATH, PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE (COLLECTIVELY, "HIGH RISK APPLICATIONS"). YOU AGREE AND ACKNOWLEDGE THAT YOU HAVE NO LICENSE TO, AND
SHALL NOT (AND SHALL NOT ALLOW A THIRD PARTY TO) USE THE TECHNOLOGY IN
ANY HIGH RISK APPLICATIONS, AND LICENSOR SPECIFICALLY DISCLAIMS ANY WARRANTY REGARDING, AND ANY LIABILITY ARISING OUT OF, HIGH RISK APPLICATIONS.
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Date
Version
Changes
8/13/2012
0.1
First draft.
Revision History
ReZolt RZ707 Em-Fi Module
User Manual 14 RZ707MS-UM-081312
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