RS9110-N-11-28-04 Redpine Signals, RS9110-N-11-28-04 Datasheet - Page 24

• Manufacturer Part Number: RS9110-N-11-28-04
• Description: WiFi / 802.11 Modules Dualband 2.4GHz&5GHz module
• Manufacturer: Redpine Signals

Specifications of RS9110-N-11-28-04

• Rohs: yes
• Protocol Supported: 802.11 a/b/g
• Frequency Band: 2.4 GHz, 5 GHz
• Data Rate: 1 Mbps to 54 Mbps
• Interface Type: SPI, UART
• Transmit Power (max): 17 dBm
• Antenna Connector Type: Chip
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Dimensions: 20 mm x 17.5 mm
• Minimum Operating Temperature: - 40 C
• Modulation Technique: CCK, DSSS, OFDM
• Security: WEP 64/128 bit AES, WPA2-PSK

6.2.4: Wireless Control Block (WCB)
6.2.4.1: TCP/IP Control frames
6.2.5: Station Management Entity (SME)
6.2.6: WPA Supplicant
6.2.7: Power Save Modes
Redpine Signals, Inc.
6.2.7.1: Power mode 0
6.2.7.2: Power mode 1
R
R
S
S
Control Block layer for the processing of the frames obtained from or destined
to the Host.
The data from/to the Host is classified as Wi-Fi specific frames and TCP/IP
specific frames. The WCB layer processes the frame obtained and acts
accordingly. The functionality of the WCB module depends on the type of the
frame and the direction of the frame (in case of TCP/IP) as described below.
If the frames from the host are interpreted as TCP/IP specific frames then the
WCB interacts with the TCP/IP stack.
The SME is the core layer which manages the Wi-Fi connectivity. The SME
maintains the state machine to detect the activity on the Wi-Fi network and
indicates to the user accordingly. It also performs re-association to the
configured access point in Infrastructure mode. It interacts with the WPA
supplicant if Security is enabled in the Wi-Fi network.
The WPA supplicant is used to initiate the 802.1x/EAccess Point
authentication if WPA/WPA2-PSK is used as the security parameter. It also
plays a major part in performing the 4-way handshake to derive the PTK in
WPA/WPA2-PSK modes.
The RS9110-N-11-2X module supports three power modes. The Host can
switch among the power modes depending on the Wi-Fi connection status as
defined in this section.
In this mode, power save is disabled in the RS9110-N-11-2X module. The
module will be in Power Mode 0 by default.
The RS9110-N-11-2X module powers off the Baseband, RF and also the Core
Control block in this mode. To power off the Core Control block, the RS9110-
N-11-2X module sends request to Host for permission to sleep.
Once the permission is received the Core Control block is powered off. The
Host has to wait for the module to wakeup based on the timer that is
configured by the Host, before it can transmit any packets.
The functioning of the module in this mode depends on the connection status
as explained below
-
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1. Before Wi-Fi connection
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In this state, the module is configured with a sleep timer. Once the
timer expires, the module powers on the Core Control block and
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Page 24