450-0037R LS Research, 450-0037R Datasheet - Page 20

• Manufacturer Part Number: 450-0037R
• Description: WiFi / 802.11 Modules TiWi-R2 Module, U.FL Conn, Tape and Reel
• Manufacturer: LS Research

Specifications of 450-0037R

• Product Category: WiFi / 802.11 Modules
• Rohs: yes
• Protocol Supported: 802.11 b/g/n, Bluetooth
• Frequency Band: 2.412 GHz to 2.472 GHz, 2.402 GHz to 2.48 GHz
• Data Rate: 65 Mbps
• Interface Type: Bluetooth, SDIO
• Transmit Power (max): 9.5 dBm, 20 dBm
• Antenna Connector Type: u.FL
• Operating Supply Voltage: 1.8 V, 3.6 V
• Maximum Operating Temperature: + 85 C
• Dimensions: 18 mm x 13 mm x 1.9 mm
• Minimum Operating Temperature: - 40 C
• Modulation Technique: CCK, OFDM
• Factory Pack Quantity: 1000

ENABLE SCHEME
The module has 3 enable pins, one for each core: WL_EN, and BT_EN and FM_EN. Presently, there are 2
modes of active operation now supported: WLAN and Bluetooth. It is recommended that the FM_EN pin be
grounded to disable the FM section. It is also recommended that the FM section be disabled by Bluetooth HCI
commands.
1. Each core is operated independently by asserting each signal EN to Logic '1’. In this mode it is possible to
2. Bluetooth mode operation. WLAN will be operated through WL_EN asynchronously and independently of
IRQ OPERATION
The information in this document is subject to change without notice.
330-0045-R4.0
control each core asynchronously and independently.
Bluetooth.
1. The default state of the WLAN_IRQ prior to firmware initialization is 0.
2. During firmware initialization, the WLAN_IRQ is configured by the SDIO module; a WLAN_IRQ changes
3. A WLAN firmware interrupt is handled as follows:
4.
its state to 1.
The host is ready to receive another interrupt from the WLAN device.
a. The WLAN firmware creates an Interrupt-to-Host, indicated by a 1-to-0 transition on the
b. After the host is available, depending on the interrupt priority and other host tasks, it masks the
c. The host reads the internal register status to determine the interrupt sources - the register is
d. The host processes in sequence all the interrupts read from this register
e. The host unmasks the firmware interrupts.
WLAN_IRQ line (host must be configured as active-low or falling-edge detect).
firmware interrupt. The WLAN_IRQ line returns to 1 (0-to-1 transition on the WLAN_IRQ line).
cleared after the read.
Copyright © 2010-2012 LS Research, LLC
TiWi-R2 TRANSCEIVER MODULE
DATASHEET
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