WISMC03BI Laird Technologies, WISMC03BI Datasheet - Page 16

• Manufacturer Part Number: WISMC03BI
• Description: MODULE LAN 802.11B/G BISM
• Manufacturer: Laird Technologies
• Series: EZURiOr

Specifications of WISMC03BI

• Frequency: 2.4GHz
• Data Rate - Maximum: 1Mbps
• Modulation Or Protocol: 802.11 b/g
• Applications: AMR, Automotive, ISM
• Power - Output: 15dBm
• Sensitivity: -86dBm
• Voltage - Supply: 3.3 V ~ 5.5 V
• Current - Transmitting: 250mA
• Data Interface: Connector, 50 Pin, DF-12
• Memory Size: 64Mbyte Flash, 16MByte SRAM
• Antenna Connector: U.FL
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Wireless Frequency: 2.412 GHz to 2.484 GHz
• Interface Type: UART
• Board Size: 22.8 mm x 33.8 mm x 7.6 mm
• Modulation: BPSK, CCK, DSSS, QPSK
• Security: WEP 64/128, WPA-PSK, WPA2, TKIP, AES-CCMP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Receiving: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

WISMC03BI
Wireless LAN Module / Device Server
FIRMWARE
FEATURES
16 www.lairdtech.com
POWER SAVINg
The module supports the Wireless LAN IEEE power saving function. When this power saving mode is enabled,
the wireless LAN chipset goes to sleep when it is not actively receiving from the access point. The chipset
wakes up on a regular basis to receive broadcast messages from the AP or to transmit or receive unicast
messages. By using this technique the average power consumption of the chipset is reduced from around
250mA in active receive mode to less than 35mA. The Laird Technologies module offers IEEE power save
operation in three different modes:
In Powersave mode 5 no other commands will be accepted by the module until it has entered either Power
Save 1 or Power Save 0 mode.
Powersave mode 1 requires beacons to be broadcast from an infrastructure access point. Therefore it is not
available when operating in ad-hoc (IBSS) mode.
• Powersave mode 1: The wireless LAN chipset operates in IEEE powersave mode and the module
• Powersave mode 2: The wireless LAN module operates in IEEE powersave mode and the module
• Powersave mode 5: The modules default mode of start up is in Powersave mode 5. At start up
microcontroller remains fully awake and ready to receive commands and data from the host.
This mode of power saving reduces the average consumption of the module to <35mA.
microcontroller is put into a very low power standby mode. The average current consumption in
this mode is reduced to <5mA. In power save mode 2, UART_DSR is used by the host to indicate
that the module can enter the low power state. When UART_DSR is de-asserted, the module
microcontroller enters low power standby. The microcontroller will re-start when either a packet
is received from the AP or the host requests it by asserting UART_DSR.
the module automatically enters Power Save 5 mode. The average current consumption in this
mode is reduced to <25mA. In this mode the module powers down the WLAN chipset, and awaits
commands from the host. The host may only send the following commands:
o UARTMODIFY
o POWERSAVE
o MACADDRESS
o VER
Laird Technologies