WISMC03BI Laird Technologies, WISMC03BI Datasheet - Page 13

• 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

7.2
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 EZURiO 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.
DSH_WISMC03_0v97 WISM 40 pin SLIP Data Sheet.doc
CFGGPIOOUTPUT
CFGGPIOINPUT
SETGPIO
CLEARGPIO
READGPIO
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•
•
Power Saving
Powersave mode 1: The wireless LAN chipset operates in IEEE powersave mode and the
module 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.
Powersave mode 2: The wireless LAN module operates in IEEE powersave mode and the
module 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.
Powersave mode 5: The modules default mode of start up is in Powersave mode 5. At start
up the module automatically enters Power Save 5 mode. The average current consumption
in this mode is reduced to <25mA.
chipset, and awaits commands from the host. The host may only send the following
commands:
o
o
o
o
UARTMODIFY
POWERSAVE
MACADDRESS
VER
In this mode the module powers down the WLAN
© 2007-8 EZURiO Ltd
Set PIO line(s) to be outputs
Set PIO line(s) to be inputs
Set output line(s) high
Set output line(s) low
Reads state of input GPIO line(s)
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