User's Manual

Wi2Wi, Inc. Doc No. AST-PDT-DOC Rev.1.1

Data Sheet, WLAN-Bluetooth SiP– W2CBW003

Dated: October 20, 2006

The content of this document is to be treated as strictly confidential and is not to be disclosed,

reproduced or used, except as authorized in writing by Wi2Wi, Inc.

Page 12 of 19

x WLAN client connected to AP and using VOIP application (Skype) on PC to make a call

VoIP Voice Quality Clear

BT transfer data ( bit rate) 780 Kbps

7 WLAN External Interfaces

W2CBW003 supports SDIO and G-SPI interfaces for WLAN.

7.1 SDIO Interface

W2CBW003 supports SDIO device interface that conforms to the industry standard SDIO Full-Speed

card specification and allows a host controller using the SDIO bus protocol to access the WLAN device.

The SDIO interface contains interface circuitry between an external SDIO bus and the internal shared

bus.

W2CBW003 acts as a device on the SDIO bus. The host unit can access registers of the SDIO interface

directly and can access shared memory in the device through the use of BARs and a DMA engine.

The SDIO device interface main features include:

x On-chip memory used for CIS

x Supports SPI, 1-bit SDIO, and 4-bit SDIO transfer modes at the full clock range of 0 to 50 MHz

x Special interrupt register for information exchange

x Allows card to interrupt host

Table 3: SDIO Pin Map

W2CBW003 Pin Name SDIO Specification Pin Name Type Description

WF_SDIO_DATA_3

DAT3 I/O Data Line Bit 3

WF_SDIO_DATA_2

DAT2 I/O Data Line Bit 2

WF_SDIO_DATA_1

DAT1 I/O Data Line Bit 1

WF_SDIO_DATA_0

DAT0 I/O Data Line Bit 0

WF_SDIO_CLK

CLK I/O Clock

WF_SDIO_CMD

CMD I/O Command/Response

7.2 G-SPI Interface

W2CBW003 supports a generic, half-duplex, DMA-assisted SPI host interface (G-SPI) that allows a

host controller using a generic SPI bus protocol to access the WLAN device. The G-SPI interface

contains interface circuitry between an external SPI bus and the internal shared bus.

The 88W8686 acts as the device on the SPI bus. The host unit can access the G-SPI registers directly

and can access shared memory in the device through the use of BARs and a DMA engine.