ATWINC1500-MR210PA - Complete

WINC1500-MR210PA DATASHEET
IEEE 802.11 b/g/n IoT Module
Datasheet
Description
The ATWINC1500-MR210PA is a low-power consumption 802.11 b/g/n IoT
(Internet of Things) module which is specifically optimized for low power IoT
applications. The highly integrated module features small form factor (21.5mm x
14.5mm x3.4mm) while fully integrating Power Amplifier, LNA, Switch, Power
Management, and PCB antenna. With seamless roaming capabilities and
advanced security, it could be interoperable with various vendors’ 802.11b/g/n
Access Points in wireless LAN. The module provides SPI and UART to interface to
host controller.
Features
• IEEE 802.11 b/g/n 20MHz (1x1) solution
®
• Single spatial stream in 2.4GHz ISM band
• Integrated PA and T/R Switch
• Integrated PCB antenna
• Superior Sensitivity and Range via advanced PHY signal processing
• Advanced Equalization and Channel Estimation
• Advanced Carrier and Timing Synchronization
• Wi-Fi Direct and Soft-AP support
• Supports IEEE 802.11 WEP, WPA, WPA2 Security
• Supports China WAPI security
• Superior MAC throughput via hardware accelerated two-level
A-MSDU/A-MPDU frame aggregation and block acknowledgement
• On-chip memory management engine to reduce host load
• SPI, UART, and I C host interfaces
2
• 2- or 3-wire Bluetooth coexistence interface
®
• Operating temperature range of -40°C to +85°C
• I/O operating voltage of 2.7V to 3.6V
• Integrated Flash memory for system software
• Power Save Modes
– 4µA Deep Power Down mode typical @3.3V I/O
– 850µA Doze mode (Chip settings are preserved. Used for beacon monitoring
mode)1
1
See Power Consumption for module power modes.
Atmel-42376C-ATWINC1500-MR210PA-SmartConnect-Datasheet_032015
– On-chip low power sleep oscillator
– Fast host wake-up from Doze mode by a pin or SPI transaction
• Fast Boot Options
– On-Chip Boot ROM (Firmware instant boot)
– SPI flash boot (firmware patches and state variables)
– Low-leakage on-chip memory for state variables
– Fast AP Re-Association (150ms)
• On-Chip Network Stack to offload MCU
– Integrated Network IP stack to minimize host CPU requirements
– Network features TCP, UDP, DHCP, ARP, HTTP, SSL, and DNS
• Small footprint host driver (4KB flash – less than 1KB RAM)
2
ATWINC1500-MR210P [DATASHEET]
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Ta bl e of Conte nts
1
Ordering Information and Module Marking................................................................ 5
2
Block Diagram ............................................................................................................. 6
3
Pinout Information....................................................................................................... 7
3.1
3.2
4
Electrical Specifications ............................................................................................. 9
4.1
4.2
5
6.2
6.3
7.2
7.3
.............................................................................................................................................. 11
Features ................................................................................................................................. 11
Description.............................................................................................................................. 12
.............................................................................................................................................. 12
Features ................................................................................................................................. 12
Description.............................................................................................................................. 12
.............................................................................................................................................. 13
SPI Interface ....................................................................................................................................... 14
7.1.1 Overview................................................................................................................................. 14
7.1.2 SPI Timing .............................................................................................................................. 15
UART Interface ................................................................................................................................... 16
Wi-Fi/Bluetooth Coexistence ............................................................................................................... 16
Power Consumption .................................................................................................. 17
8.1
8.2
8.3
8.4
8.5
9
MAC
6.1.1
6.1.2
PHY
6.2.1
6.2.2
Radio
External Interfaces .................................................................................................... 14
7.1
8
Processor ............................................................................................................................................ 10
Memory Subsystem............................................................................................................................. 10
Non-Volatile Memory (eFuse) ............................................................................................................. 10
WLAN Subsystem ...................................................................................................... 11
6.1
7
Absolute Ratings ................................................................................................................................... 9
Recommended Operating Conditions ................................................................................................. 10
CPU and Memory Subsystems ................................................................................. 10
5.1
5.2
5.3
6
Pin Description ...................................................................................................................................... 7
Module Outline Drawing ........................................................................................................................ 9
Description of Device States ............................................................................................................... 17
Controlling the Device States .............................................................................................................. 17
Restrictions for Power States .............................................................................................................. 17
Power-Up/Down Sequence ................................................................................................................. 17
Digital I/O Pin Behavior during Power-Up Sequences......................................................................... 18
VDDIO Load Switch ................................................................................................... 19
10 Notes On Interfacing to the ATWINC1500-MR210P ................................................. 20
10.1 Programmable Pull Up Resistors ........................................................................................................ 20
11 Recommended Footprint (Unit: mm) ........................................................................ 21
12 RF Performance Placement Guidelines ................................................................... 21
13 Recommended Reflow Profile .................................................................................. 22
14 Module Schematic ..................................................................................................... 23
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3
15 Module Bill of Materials (BOM) ................................................................................. 24
16 Application Schematic .............................................................................................. 25
17 Reference Documentation and Support................................................................... 26
17.1 Reference Documents......................................................................................................................... 26
18 Revision History ........................................................................................................ 27
4
ATWINC1500-MR210P [DATASHEET]
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1
Ordering Information and Module Marking
Table 1-1.
Ordering Details
Ordering Code
Package
Description
ATWINC1500-MR210PA
22x15mm
Certified module with ATWINC1500A chip and PCB antenna
Figure 1-1.
Marking Information
ATWINC1500-MR210P [DATASHEET]
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5
Block Diagram
Figure 2-1.
Block Diagram of the Module
VBAT
VDDIO
Load
Switch
Chip_EN
Printed 2.4GHz
Antenna
Switching
Regulator
Chip_EN
1.3V
VBAT
VDDIO
2
I2C
RX/TX
SPI_CFG
BALUN
SPI
ATWINC1500A
802.11 B,G,N SOC
GPIO15
GPIO16
GPIO18
IRQN
Chip_EN
WAKE
26 Mhz Crystal
RESET
GND
6
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3
Pinout Information
3.1
Pin Description
Figure 3-1.
Pin Assignment
Table 3-1.
Pin Description
NO
Name
Type
Description
Programmable
Pull-up Resistor
1
GPIO_18
I/O
General purpose I/O.
Yes
2
2
I2C_SCL
I/O
I C Slave Clock. Currently used only for Atmel debug. Not for
customer use. Leave unconnected.
3
I2C_SDA
I/O
I C Slave Data. Currently used only for Atmel debug. Not for customer use. Leave unconnected.
Yes
No
Yes
2
4
RESET_N
I
Active-Low Hard Reset. When asserted to a low level, the module
will be placed in a reset state. When asserted to a high level, the
module will run normally. Connect to a host output that defaults
low at power up. If the host output is tri-stated, add a 1MΩ
pull-down resistor to ensure a low level at power up.
5
NC
-
No connect
6
NC
-
No connect
7
NC
-
No connect
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7
8
Programmable
Pull-up Resistor
NO
Name
Type
Description
8
NC
-
No connect
9
GND_1
-
GND
10
SPI_CFG
I
Tie to VDDIO through a 1MΩ resistor to enable the SPI interface.
No
11
WAKE
I
Host Wake control. Can be used to wake up the module from Doze
mode. Connect to a host GPIO.
Yes
12
GND_2
-
GND
13
IRQN
O
ATWINC1500-MR210PA Device Interrupt output. Connect to host
interrupt input pin.
Yes
14
UART_TXD
O
UART Transmit Output from ATWINC1500-MR210P.
Yes
15
SPI_RXD
I
SPI MOSI (Master Out Slave In) pin.
Yes
16
SPI_SSN
I
SPI Slave Select. Active low.
Yes
17
SPI_TXD
O
SPI MISO (Master In Slave Out) pin.
Yes
18
SPI_SCK
I
SPI Clock.
Yes
19
UART_RXD
I
UART Receive input to ATWINC1500-MR210P.
Yes
20
VBATT
-
Battery power supply.
21
GPIO_1
I
General Purpose I/O.
Yes
No
22
CHIP_EN
I
Module enable. High level enables module, low level places module in Power Down mode. Connect to a host Output that defaults
low at power up. If the host output is tri-stated, add a 1MΩ
pull-down resistor to ensure a low level at power up.
23
VDDIO
-
I/O Power Supply. Must match host I/O voltage.
24
1P3V_TP
-
1.3V VDD Core Test Point. Leave unconnected.
25
NC
-
No connect
26
GPIO_15
I/O
General purpose I/O.
Yes
27
GPIO_16
I/O
General purpose I/O.
Yes
28
GND_3
-
GND
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3.2
Module Outline Drawing
Figure 3-2.
Module Drawings – Top and Bottom Views (unit = mm)
4
Electrical Specifications
4.1
Absolute Ratings
Table 4-1.
Voltages
Symbol
Description
Min.
Max.
Unit
VBAT
Input supply Voltage
-0.3
5.0
V
VDDIO
I/O Voltage
-0.3
4.6
V
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4.2
Recommended Operating Conditions
Table 4-2.
Recommended Operating Conditions
Test conditions: -40ºC - +85ºC
Symbol
Min.
Typ.
Max.
Unit
VBAT
3.0
3.6
4.2
V
VDDIO
2.7
3.3
3.6
V
5
CPU and Memory Subsystems
5.1
Processor
ATWINC1500A has a Cortus APS3 32-bit processor. This processor performs many of the MAC functions,
including but not limited to association, authentication, power management, security key management, and
MSDU aggregation/de-aggregation. In addition, the processor provides flexibility for various modes of operation,
such as STA and AP modes.
5.2
Memory Subsystem
The APS3 core uses a 128KB instruction/boot ROM along with a 128KB instruction RAM and a 64KB data RAM.
ATWINC1500A also has 4Mb of flash memory, which can be used for system software. In addition, the device
uses a 128KB shared RAM, accessible by the processor and MAC, which allows the APS3 core to perform
various data management tasks on the TX and RX data packets.
5.3
Non-Volatile Memory (eFuse)
ATWINC1500A has 768 bits of non-volatile eFuse memory that can be read by the CPU after device reset. This
non-volatile one-time-programmable (OTP) memory can be used to store customer-specific parameters, such as
MAC address; various calibration information, such as TX power, crystal frequency offset, etc.; and other
software-specific configuration parameters. The eFuse is partitioned into six 128-bit banks. Each bank has the
same bit map, which is shown in Figure 5-1. The purpose of the first 80 bits in each bank is fixed, and the
remaining 48 bits are general-purpose software dependent bits, or reserved for future use. Since each bank can
be programmed independently, this allows for several updates of the device parameters following the initial
programming, e.g. updating MAC address. Refer to ATWINC1500A Programming Guide for the eFuse
programming instructions.
10
ATWINC1500-MR210P [DATASHEET]
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1
Bank 0
F
1
8
48
MAC ADDR
G
15
Freq.
Offset
7
Used
Reserved
Version
Flags
8
1
TX
Gain
Correc
tion
4
3
Used
1
Invalid
Used
1
eFuse Bit Map
MAC ADDR
Used
Figure 5-1.
16
FO
Bank 1
Bank 2
Bank 3
Bank 4
Bank 5
128 Bits
6
WLAN Subsystem
The WLAN subsystem is composed of the Media Access Controller (MAC) and the Physical Layer (PHY). The
following two subsections describe the MAC and PHY in detail.
6.1
MAC
6.1.1
Features
The ATWINC1500A IEEE802.11 MAC supports the following functions:
•
IEEE 802.11b/g/n
•
IEEE 802.11e WMM QoS EDCA/PCF multiple access categories traffic scheduling
•
Advanced IEEE 802.11n features:
–
•
Transmission and reception of aggregated MPDUs (A-MPDU)
–
Transmission and reception of aggregated MSDUs (A-MSDU)
–
Immediate Block Acknowledgement
–
Reduced Interframe Spacing (RIFS)
Support for IEEE802.11i and WFA security with key management
–
WEP 64/128
–
WPA-TKIP
–
128-bit WPA2 CCMP (AES)
•
Support for WAPI security
•
Advanced power management
–
Standard 802.11 Power Save Mode
–
Wi-Fi Alliance WMM-PS (U-APSD)
•
RTS-CTS and CTS-self support
•
Supports either STA or AP mode in the infrastructure basic service set mode
•
Supports independent basic service set (IBSS)
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6.1.2
Description
The ATWINC1500A MAC is designed to operate at low power while providing high data throughput. The IEEE
802.11 MAC functions are implemented with a combination of dedicated datapath engines, hardwired control
logic, and a low-power, high-efficiency microprocessor. The combination of dedicated logic with a programmable
processor provides optimal power efficiency and real-time response while providing the flexibility to
accommodate evolving standards and future feature enhancements.
Dedicated datapath engines are used to implement data path functions with heavy computational. For example,
an FCS engine checks the CRC of the transmitting and receiving packets, and a cipher engine performs all the
required encryption and decryption operations for the WEP, WPA-TKIP, WPA2 CCMP-AES, and WAPI security
requirements.
Control functions which have real-time requirements are implemented using hardwired control logic modules.
These logic modules offer real-time response while maintaining configurability via the processor. Examples of
hardwired control logic modules are the channel access control module (implements EDCA/HCCA, Beacon TX
control, interframe spacing, etc.), protocol timer module (responsible for the Network Access Vector, back-off
timing, timing synchronization function, and slot management), MPDU handling module,
aggregation/de-aggregation module, block ACK controller (implements the protocol requirements for burst block
communication), and TX/RX control FSMs (coordinate data movement between PHY-MAC interface, cipher
engine, and the DMA interface to the TX/RX FIFOs).
The MAC functions implemented solely in software on the microprocessor have the following characteristics:
•
Functions with high memory requirements or complex data structures. Examples are association table
management and power save queuing.
•
Functions with low computational load or without critical real-time requirements. Examples are
authentication and association.
•
Functions which need flexibility and upgradeability. Examples are beacon frame processing and QoS
scheduling.
6.2
PHY
6.2.1
Features
The ATWINC1500A IEEE802.11 PHY supports the following functions:
6.2.2
•
Single antenna 1x1 stream in 20MHz channels
•
Supports IEEE 802.11b DSSS-CCK modulation: 1, 2, 5.5, 11Mbps
•
Supports IEEE 802.11g OFDM modulation: 6, 9, 12,18, 24, 36, 48, 54Mbps
•
Supports IEEE 802.11n HT modulations MCS0-7, 20MHz, 800 and 400ns guard interval: 6.5, 7.2, 13.0,
14.4, 19.5, 21.7, 26.0, 28.9, 39.0, 43.3, 52.0, 57.8, 58.5, 65.0, 72.2Mbps
•
IEEE 802.11n mixed mode operation
•
Per packet TX power control
•
Advanced channel estimation/equalization, automatic gain control, CCA, carrier/symbol recovery, and
frame detection
Description
The ATWINC1500A WLAN PHY is designed to achieve reliable and power-efficient physical layer
communication specified by IEEE 802.11 b/g/n in single stream mode with 20MHz bandwidth. Advanced
algorithms have been employed to achieve maximum throughput in a real world communication environment
with impairments and interference. The PHY implements all the required functions such as FFT, filtering, FEC
(Viterbi decoder), frequency and timing acquisition and tracking, channel estimation and equalization, carrier
sensing and clear channel assessment, as well as the automatic gain control.
12
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6.3
Radio
Table 6-1.
Radio Performance under Typical Conditions: VBAT=3.3V; VDDIO=3.3V; Temp: 25ºC @ RF Pins
Feature
Description
Module Part Number
ATWINC1500-MR210P
WLAN Standard
IEEE 802.11b/g/n, Wi-Fi compliant
Host Interface
SPI, UART
Dimension
L x W x H: 21.72 x 14.73 x 3.5 (typical) mm
Frequency Range
2.412GHz ~ 2.4835GHz (2.4GHz ISM Band)
Number of Channels
11 for North America, 13 for Europe, and 14 for Japan
Modulation
802.11b : DQPSK, DBPSK, CCK
802.11g/n : OFDM /64-QAM,16-QAM, QPSK, BPSK
802.11b /11Mbps : 19dBm ± 1dB
1
Output Power
802.11g /54Mbps : 15.5dBm ± 1dB @ EVM -28dB
802.11n /65Mbps : 13dBm ± 1dB @ EVM -30dB
Receive Sensitivity
(11n,20MHz)
@10% PER
Receive Sensitivity (11g)
@10% PER
Receive Sensitivity (11b)
@8% PER
- MCS=0
PER @ -90dBm ± 1dB
- MCS=1
PER @ -86dBm ± 1dB
- MCS=2
PER @ -84dBm ± 1dB
- MCS=3
PER @ -81.5dBm ± 1dB
- MCS=4
PER @ -78dBm ± 1dB
- MCS=5
PER @ -74dBm ± 1dB
- MCS=6
PER @ -72.5dBm ± 1dB
- MCS=7
PER @ -71.5dBm ± 1dB
- 6Mbps
PER @ -91dBm ± 1dB
- 9Mbps
PER @ -89dBm ± 1dB
- 12Mbps
PER @ -88.5dBm ± 1dB
- 18Mbps
PER @ -86.5dBm ± 1dB
- 24Mbps
PER @ -84dBm ± 1dB
- 36Mbps
PER @ -78.5dBm ± 1dB
- 48Mbps
PER @ -77dBm ± 1dB
- 54Mbps
PER @ -75dBm ± 1dB
- 1Mbps
PER @ -98dBm ± 1dB
- 2Mbps
PER @ -95dBm ± 1dB
- 5.5Mbps
PER @ -93dBm ± 1dB
- 11Mbps
PER @ -89dBm ± 1dB
802.11b : 1, 2, 5.5, 11Mbps
Data Rate
802.11g : 6, 9, 12, 18, 24, 36, 48, 54Mbps
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Feature
Description
Data Rate
(20MHz ,normal 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
802.11b : 0dBm typical
Maximum Input Level
802.11g/n : -5dBm typical
2
Operating temperature
-40°C to 85°C
Storage temperature
-40°C to 85°C
Humidity
Operating Humidity 10% to 95% Non-Condensing
Storage Humidity 5% to 95% Non-Condensing
Notes:
1.
2.
Measured at 802.11 spec compliant EVM/Spectral Mask.
RF performance guaranteed for Temp range -30 to 85deg. 1dB derating in performance at -40deg.
7
External Interfaces
7.1
SPI Interface
7.1.1
Overview
ATWINC1500-MR210PA has a Serial Peripheral Interface (SPI) that operates as a SPI slave. The SPI interface
can be used for control and for serial I/O of 802.11 data. The SPI pins are mapped as shown in Table 7-1. The
SPI is a full-duplex slave-synchronous serial interface that is available immediately following reset when pin 10
(SPI_CFG) is tied to VDDIO.
Table 7-1.
SPI Interface Pin Mapping
Pin #
SPI Function
10
CFG: Must be tied to VDDIO
16
SSN: Active Low Slave Select
15
MOSI(RXD): Serial Data Receive
18
SCK: Serial Clock
17
MISO(TXD): Serial Data Transmit
When the SPI is not selected, i.e., when SSN is high, the SPI interface will not interfere with data transfers
between the serial-master and other serial-slave devices. When the serial slave is not selected, its transmitted
data output is buffered, resulting in a high impedance drive onto the MISO line.
The SPI interface responds to a protocol that allows an external host to read or write any register in the chip as
well as initiate DMA transfers.
The SPI SSN, MOSI, MISO, and SCK pins of the ATWINC1500-MR210PA have internal programmable pull-up
resistors (See Section 10.1). These resistors should be programmed to be disabled. Otherwise, if any of the SPI
pins are driven to a low level while the ATWINC1500-MR210PA is in the low power sleep state, current will flow
from the VDDIO supply through the pull-up resistors, increasing the current consumption of the module.
14
ATWINC1500-MR210P [DATASHEET]
Atmel-42376C-ATWINC1500-MR210PA-SmartConnect-Datasheet_032015
7.1.2
SPI Timing
The SPI timing is provided in Figure 7-1 and Table 7-2.
Figure 7-1.
SPI Timing Diagram (SPI Mode CPOL=0, CPHA=0)
fSCK
tLH
tWL
tWH
SCK
tHL
TXD
t ODLY
RXD
tISU
SSN
SPI Master
tSSODLY
SSN
SPI Slave
Table 7-2.
tIHD
t SUSSN
t HDSSN
SPI Slave Timing Parameters
Parameter
Symbol
Min
Max
Units
Clock Input Frequency
fSCK
48
MHz
Clock Low Pulse Width
tWL
15
ns
Clock High Pulse Width
tWH
15
ns
Clock Rise Time
tLH
10
ns
Clock Fall Time
tHL
10
ns
Input Setup Time
tISU
5
ns
Input Hold Time
tIHD
5
ns
Output Delay
tODLY
0
Slave Select Setup Time
tSUSSN
5
ns
Slave Select Hold Time
tHDSSN
5
ns
20
Remarks
ns
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7.2
UART Interface
The ATWINC1500-MR210PA has a Universal Asynchronous Receiver/Transmitter (UART) interface available
on pins J14 and J19. It can be used for control or data transfer if the baud rate is sufficient for a given application.
The UART is compatible with the RS-232 standard, where ATWINC1500-MR210PA operates as Data Terminal
Equipment (DTE). It has a two-pin RXD/TXD interface.
The UART features programmable baud rate generation with fractional clock division, which allows transmission
and reception at a wide variety of standard and non-standard baud rates. The UART input clock is selectable
between 10MHz, 5MHz, 2.5MHz, and 1.25MHz. The clock divider value is programmable as 13 integer bits and
3 fractional bits (with 8.0 being the smallest recommended value for normal operation). This results in the
maximum supported baud rate of 10MHz/8.0 = 1.25MBd.
The UART can be configured for seven or eight bit operation, with or without parity, with four different parity types
(odd, even, mark, or space), and with one or two stop bits. It also has Rx and Tx FIFOs, which ensure reliable
high speed reception and low software overhead transmission. FIFO size is 4 x 8 for both Rx and Tx direction.
The UART also has status registers showing the number of received characters available in the FIFO and
various error conditions, as well the ability to generate interrupts based on these status bits.
An example of UART receiving or transmitting a single packet is shown in Figure 7-2. This example shows 7-bit
data (0x45), odd parity, and two stop bits.
See the ATWINC1500-MR210PA Programming Guide for information on configuring the UART.
Figure 7-2.
7.3
Example of UART Rx of Tx Packet
Wi-Fi/Bluetooth Coexistence
ATWILC1000A supports 2-wire and 3-wire Wi-Fi/Bluetooth Coexistence signaling conforming to the IEEE
802.15.2-2003 standard, Part 15.2. The type of coexistence interface used (2 or 3 wire) is chosen to be
compatible with the specific Bluetooth device used in a given application. Table 7-3 shows a usage example of
the 2-wire interface using the GPIO3 and GPIO4 pins; 3-wire interface using the GPIO3, GPIO4, and GPIO5
pins; for more specific instructions on configuring Coexistence refer to ATWILC1000A Programming Guide.
Table 7-3.
16
Coexistence Pin Assignment Example
Pin Name
Function
Target
Pin #
2-wire
3-wire
GPIO3
BT_Req
BT is requesting to access the medium to transmit or
receive. Goes high on TX or RX slot
28
Used
Used
GPIO4
BT_Pri
Priority of the BT packets in the requested slot. High to
indicate high priority and low for normal.
29
Not Used
Used
GPIO5
WL_Act
Device response to the BT request. High - BT_req is
denied and BT slot blocked.
30
Used
Used
GPIO6
Ant_SW
Direct control on Antenna (coex bypass)
31
Optional
Optional
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Power Consumption
8.1
Description of Device States
ATWILC1000A has several Devices States:
8.2
•
ON_Transmit
– Device is actively transmitting an 802.11 signal
•
ON_Receive
– Device is actively receiving an 802.11 signal
•
ON_Doze
– Device is on but is neither transmitting nor receiving
•
Power_Down
– Device core supply off (Leakage)
Controlling the Device States
Table 8-1 shows how to switch between the device states using the following:
•
CHIP_EN
– Device pin (pin #23) used to enable DC/DC Converter
•
VDDIO
– I/O supply voltage from external supply
Table 8-1.
Device States
Power Consumption
Device State
CHIP_EN
VDDIO
IVBATT
IVDDIO
ON_Transmit
VDDIO
On
230mA @ 18dBm
29mA
ON_Receive
VDDIO
On
68mA
29mA
2
ON_Doze
VDDIO
On
850 µA
<10µA
Power_Down
GND
On
<0.5µA
<0.2µA
Notes:
8.3
1
1.
2.
Conditions: VBAT @ 3.6v, [email protected]
850µA Doze current is for ATWINC1500-MR210P module which uses an external DC-DC chip. Core
ATWINC1500 Doze is 240µA.
Restrictions for Power States
When no power supplied to the device, i.e., the DC/DC Converter output and VDDIO are both off (at ground
potential). In this case, a voltage cannot be applied to the device pins because each pin contains an ESD diode
from the pin to supply. This diode will turn on when voltage higher than one diode-drop is supplied to the pin.
If a voltage must be applied to the signal pads while the chip is in a low power state, the VDDIO supply must be
on, so the SLEEP or Power_Down state must be used.
Similarly, to prevent the pin-to-ground diode from turning on, do not apply a voltage that is more than one
diode-drop below ground to any pin.
8.4
Power-Up/Down Sequence
The power-up/down sequence for ATWINC1500A is shown in Figure 8-1. The timing parameters are provided in
Table 8-2.
ATWINC1500-MR210P [DATASHEET]
Atmel-42376C-ATWINC1500-MR210PA-SmartConnect-Datasheet_032015
17
Figure 8-1.
Power Up/Down Sequence
VBATT
tA
t A'
VDDIO
tB
t B'
CHIP_EN
tC
t C'
RESETN
XO Clock
Table 8-2.
8.5
Power-Up/Down Sequence Timing
Parameter
Min
tA
tB
Max
Units
Description
Notes
0
ms
VBATT rise to VDDIO rise
VBATT and VDDIO can rise simultaneously
or can be tied together. VDDIO must not
rise before VBATT.
0
ms
VDDIO rise to CHIP_EN rise
CHIP_EN must not rise before VDDIO.
CHIP_EN must be driven high or low, not
left floating.
tC
5
ms
CHIP_EN rise to RESETN rise
This delay is needed because XO clock
must stabilize before RESETN removal.
RESETN must be driven high or low, not left
floating.
tA’
0
ms
VDDIO fall to VBATT fall
VBATT and VDDIO can fall simultaneously
or can be tied together. VBATT must not fall
before VDDIO.
tB’
0
ms
CHIP_EN fall to VDDIO fall
VDDIO must not fall before CHIP_EN.
CHIP_EN and RESETN can fall simultaneously.
tC’
0
ms
RESETN fall to VDDIO fall
VDDIO must not fall before RESETN. RESETN and CHIP_EN can fall simultaneously.
Digital I/O Pin Behavior during Power-Up Sequences
Table 8-3 represents digital IO Pin states corresponding to device power modes.
Table 8-3.
18
Digital I/O Pin Behavior in Different Device States
Device State
VDDIO
CHIP_EN
RESETN
Output
Driver
Input
Driver
Pull-Up/Down
Resistor (96kΩ)
Power Down:
core supply off
High
Low
Low
Disabled (Hi-Z)
Disabled
Disabled
ATWINC1500-MR210P [DATASHEET]
Atmel-42376C-ATWINC1500-MR210PA-SmartConnect-Datasheet_032015
Device State
VDDIO
CHIP_EN
RESETN
Output
Driver
Input
Driver
Pull-Up/Down
Resistor (96kΩ)
Power-On Reset:
core supply on, hard reset on
High
High
Low
Disabled (Hi-Z)
Disabled
Enabled
Power-On Default:
core supply on, device out of
reset but not programmed yet
High
High
High
Disabled (Hi-Z)
Enabled
Enabled
High
Programmed by
firmware for
each pin:
Enabled or
Disabled
Opposite
of Output
Driver
state
Programmed by
firmware for
each pin:
Enabled or
Disabled
On Sleep/
On Transmit/
On Receive:
core supply on, device
programmed by firmware
9
High
High
VDDIO Load Switch
The ATWINC1500-MR210PA module is designed with a load switch in series with the VDDIO supply. The load
switch is controlled by the Chip_En pin of the module (Module pin 22). When Chip_En is high, the load switch is
turned on. When Chip_En is low the load switch is open and VDDIO is disconnected from the
ATWINC1500-MR210P. When the VDDIO supply to the ATWINC1500-MR210PA is disconnected it is important
that none of the pins to the ATWINC1500-MR210PA is in a high state. Figure 9-1 shows the ESD structure of the
pins of the ATWINC1500 and Figure 9-2 shows the current path through the ESD diode from a pin that is being
driven high to the VDDIO supply of the device. In effect, if VDDIO is disconnected from the external power supply
and a high level is driven on to a pad of the device, the device will be powered up through the pad.
Figure 9-1.
TWINC1500 Pad ESD Structure
VDDIO
ATWINC1500
I/O Power Bus
Pad
This shows why it is important that any time Chip_En to the module is low, all pins interfacing to the module must
not be driven or pulled high. They should either be set to a low level or high impedance state. This means that if
any external pull-up resistors are attached to any pins they should be disconnected from the supply when
Chip_En is low.
ATWINC1500-MR210P [DATASHEET]
Atmel-42376C-ATWINC1500-MR210PA-SmartConnect-Datasheet_032015
19
Figure 9-2.
Current Path through ESD Diode
DVDDIO
ATWINC1500
I/O Power Bus
Pad
10
Notes On Interfacing to the ATWINC1500-MR210P
10.1
Programmable Pull Up Resistors
The ATWINC1500-MR210PA provides programmable pull-up resistors on various pins. The purpose of these
resistors is to keep any unused input pins from floating which can cause excess current to flow through the input
buffer from the VDDIO supply. Any unused module pin on the ATWINC1500-MR210PA should leave these
pull-up resistors enabled so the pin will not float. The default state at power up is for the pull-up resistor to be
enabled. However, any pin which is used should have the pull-up resistor disabled. The reason for this is that if
any pins are driven to a low level while the ATWINC1500-MR210PA is in the low power sleep state, current will
flow from the VDDIO supply through the pull-up resistors, increasing the current consumption of the module.
Since the value of the pull-up resistor is approximately 100KΩ, the current through any pull-up resistor that is
being driven low will be VDDIO/100K. For VDDIO = 3.3V, the current through each pull-up resistor that is driven
low would be approximately 3.3V/100K = 33µA. Pins which are used and have had the programmable pull-up
resistor disabled should always be actively driven to either a high or low level and not be allowed to float.
See the ATWINC1500-MR210PA Programming Guide for information on enabling/disabling the programmable
pull up resistors.
20
ATWINC1500-MR210P [DATASHEET]
Atmel-42376C-ATWINC1500-MR210PA-SmartConnect-Datasheet_032015
11
Recommended Footprint (Unit: mm)
Figure 11-1.
12
Footprint Drawing
RF Performance Placement Guidelines
It is critical to follow the recommendations listed below to achieve the best RF performance:
•
Module must be placed on main board - printed antenna area must overlap with the carrier board. The
portion of the module containing the antenna should not stick out over the edge of the main board. The
antenna is de-signed to work properly when it is sitting directly on top of a 1.5mm thick printed circuit board.
•
If the module is placed at the edge of the main board, a minimum 22mm by 5mm area directly under the
antenna must be clear of all metal on all layers of the board. “In-land” placement is acceptable; however
deepness of keep-out area must grove to: module edge to main board edge plus 5mm. DO NOT PLACE
MODULE IN THE MIDDLE OF THE MAIN BOARD OR FAR AWAY FROM THE MAIN BOARD EDGE.
•
Keep away from antenna, as far as possible, large metal objects to avoid electromagnetic field blocking.
•
Do not enclose the antenna within a metal shield.
•
Keep any components which may radiate noise or signals within the 2.4GHz – 2.5GHz frequency band far
away from the antenna or better yet, shield those components. Any noise radiated from the main board in
this frequency band will degrade the sensitivity of the module.
•
Contact Atmel for assistance if any other placement is required.
ATWINC1500-MR210P [DATASHEET]
Atmel-42376C-ATWINC1500-MR210PA-SmartConnect-Datasheet_032015
21
13
Recommended Reflow Profile
Referred to IPC/JEDEC standard. Peak Temperature: <250°C.
Number of Times: two times maximum.
Figure 13-1.
22
Typical Reflow Profile
ATWINC1500-MR210P [DATASHEET]
Atmel-42376C-ATWINC1500-MR210PA-SmartConnect-Datasheet_032015
14
Module Schematic
Figure 14-1.
ATWINC1500-MR210PA Schematic
ATWINC1500-MR210P [DATASHEET]
Atmel-42376C-ATWINC1500-MR210PA-SmartConnect-Datasheet_032015
23
15
Module Bill of Materials (BOM)
Table 15-1.
ATWINC1500-MR210PA BOM
WiFi shielded module with DC/DC, discrete balun, load switch and printed antenna Revised: Friday, September 11, 2014
ATWINC1500-MR210P
Revision: A
Item Qty
1
2
2
2
3
7
1
1
2
2
2
1
1
1
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
3
1
2
1
1
1
19
20
21
22
23
24
25
1
1
1
1
1
1
Reference
Value
Description
Manufacturer
Part Number
Footprint
C5,C12
1.0uF
CAP,CER,1.0uF,20%,X5R,0402,6.3V
Panasonic
ECJ-0EB0J105M
CS0402
CAP CER 1000PF 50V 10% X7R 0402
Murata
GRM155R71H102KA01D
CS0402
C1,C14
1000PF
C2,C3,C4,C8,C9,C10,
C11
0.1uF
C13
22pF
C17
4.7uF
C23,C24
1pF
C6,C7
10PF
C15,C16
1.8PF
C19
10uF
C21
0
C20
1.8PF
C18,C22
DNI
FB1,FB2,FB3
BLM15AG121SN1
L1
2.2uH
L2,L5
3.3nH
R1
261k
R2
6.8PF
R3
301k
R4
DNI
U1
ATWINC1500A-MU
U2
FT440Aa
U3
NC7SZ66L6X
Y1
26.000MHz
PCB
Shield
-
CAP,CER,0.1uF,10%,X5R,0402,10V
AVX
0402ZD104KAT2A
CS0402
CAP,CER,22pF,5%,NPO,0402,50V
Murata
GRM1555C1H220JZ01
CS0402
CAP CER 4.7UF 4V 20% X5R 0402
Murata
CAP CER 1PF 50V NP0 0201
Murata
GRM155R60G475ME47D
GRM0335C1H1R0CA01D
CS0201
CAP CER 10PF 50V 1% NP0 0402
Murata
GRM1555C1H100FA01D
CS0402
CAP CER 1.8PF 50V NP0 0201
Murata
GRM0335C1H1R8CA01D
CS0201
CAP CER 10UF 4V 20% X5R 0402
Murata
RES 0.0 OHM 1/20W JUMP 0201 SMD
Panasonic
GRM155R60G106ME44D
ERJ-1GN0R00C
RS0201
CAP CER 1.8PF 50V NP0 0201
Murata
GRM0335C1H1R8CA01D
CS0201
CS0402
FERRITE,120 OHM @100MHz,0402
Murata
BLM15AG121SN1
FBS0402
POWER INDUCTOR,2.2uH,20%,1250mA,0.22ohms,0603
Murata
LPS0603
INDUCTOR 3.3+/-0.2NH 750MA 0201
Murata
LQM18PN2R2MFRL
LQP03TN3N3C02D
RES 261K OHM 1/10W 1% 0402 SMD
Panasonic
ERJ-2RKF2613X
RS0402
LS0201
CAP,CER,6.8pF,NPO,0402,50V
Murata
GRM1555C1H6R8CA01
CS0402
RES 301K OHM 1/10W 1% 0402 SMD
Panasonic
ERJ-2RKF3013X
RS0402
IC, WiFi, 40QFN
Atmel
ATWINC1500A-MU
40QFN
1.5MHz, 600mA, Synchronous Step-Down Converter
FMD
FT440Aa
NC7SZ66L6X
SOT23-5
6-UFDFN
ABM10-26.000MHZ-D30-T3
4 SMD
IC BUS SWITCH SGL SPST 6MICROPAK
Fairchild
CRYSTAL 26MHZ 10PF SMD
Abracon
Createk
Createk
Revision A -Initial release to production.
24
CS0402
ATWINC1500-MR210P [DATASHEET]
Atmel-42376C-ATWINC1500-MR210PA-SmartConnect-Datasheet_032015
ATWINC1500-MR210PA
Metal Shield
NMI RF Shield rev1
16
Application Schematic
Table 16-1.
Application Schematic
ATWINC1500-MR210P [DATASHEET]
Atmel-42376C-ATWINC1500-MR210PA-SmartConnect-Datasheet_032015
25
17
Reference Documentation and Support
17.1
Reference Documents
Atmel offers a set of collateral documentation to ease integration and device ramp.
The following list of documents available on Atmel web or integrated into development tools.
Title
Content
Datasheet
This Document
Design Files
Package
User Guide, Schematic, PCB layout, Gerber, BOM & System notes on: RF/Radio Full Test Report,
radiation pattern, design guidelines, temperature performance, ESD.
Platform Getting
Started Guide
How to use package: Out of the Box starting guide, HW limitations and notes, SW Quick start guidelines.
HW Design
Guide
Best practices and recommendations to design a board with the product,
Including: Antenna Design for Wi-Fi (layout recommendations, types of antennas, impedance matching, using a power amplifier etc), SPI/UART protocol between Wi-Fi SoC and the Host MCU.
SW Design
Guide
Integration guide with clear description of: High level Arch, overview on how to write a networking
application, list all API, parameters and structures.
Features of the device, SPI/handshake protocol between device and host MCU, with
flow/sequence/state diagram, timing.
SW Programmer Guide
Explain in details the flow chart and how to use each API to implement all generic use cases (e.g. start
AP, start STA, provisioning, UDP, TCP, http, TLS, p2p, errors management, connection/transfer
recovery mechanism/state diagram) - usage & sample App note
For a complete listing of development-support tools & documentation, visit http://www.atmel.com/, or contact the
nearest Atmel field representative.
26
ATWINC1500-MR210P [DATASHEET]
Atmel-42376C-ATWINC1500-MR210PA-SmartConnect-Datasheet_032015
18
Revision History
Doc Rev.
Date
Comments
42376C
03/2015
Updated Figure 11-1 Footprint Drawing.
42376B
02/2015
Updated datasheet revision Atmel format.
42376A
10/2014
Initial document release.
ATWINC1500-MR210P [DATASHEET]
Atmel-42376C-ATWINC1500-MR210PA-SmartConnect-Datasheet_032015
27
Atmel Corporation
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© 2015 Atmel Corporation. / Rev.: Atmel-42376C-ATWINC1500-MR210PA-SmartConnect-Datasheet_032015.
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28
ATWINC1500-MR210P [DATASHEET]
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