User's Manual

XXXXXXXX Rev X

LA-5127 CF card Integration Guide

Confidential Material – Disclosure Strictly Prohibited.

11 2462 USA, Canada, EU, Japan

12 2467 EU, Japan

13 2472 EU, Japan

14 2484 Japan

Table 1. IEEE 802.11g Channels

2.2.8 Electrical Interface

The electrical interface for LA-5127 is PC16. The chipset used supports this

interface; therefore no external component is required. The host must support the

PC16 interface as well. The card uses only the 16-bit interface.

2.2.9 Bluetooth Coexistence and Wake-on-WLAN

LA-5127 hardware is being designed to support these features for future software

implementation. AT THIS TIME THESE FEATURES ARE NOT SUPPORTED BY

THE SOFTWARE.

Three GPIO pins have been assigned to support the BT Coexistence. The

following is the assignment to support the BT Coexistence with Broadcom’s

BCM2045 BT module:

GPIO 2-3: BT0 (Tx Config) (Connected to pin A10 on CF interface)

GPIO 2-4: BT1 (Status) (Connected to pin CSEL on CF interface)

GPIO 2-5: BT2 (RF Active) (Connected to pin SPKR on CF interface)

The following GPIO signal is also available for Wake-on-WLAN functionality:

GPIO 2-11: WOL (Connected to STSCHG on CF interface)

3. Design Overview

The chipset used implements a dual band direct conversion transceiver

supporting 2.4GHz band. The chipset uses “Zero Intermediate Frequency (ZIF)

architecture for the radio. The architecture contains low-noise amplifiers, quad

up/down converters, frequency synthesizers, low-pass filters, baseband AGC

receiver amplifiers, transmit/receive switches, and transmitter power amplifiers.