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Hardware Design Guide Revision 0.3 - elinux

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3. Power Sequence<br />

3.1. WLAN Power on Sequence<br />

Figure 1. WLAN Power on sequence<br />

Doc No: WG7310-00-HDG-R03<br />

The duration of T1 is defined as the time from WL_EN=high until Fref is<br />

valid for the SoC.<br />

T1 ~ 55ms<br />

The duration of T2 depends on:<br />

� Operation system<br />

� Host enumeration for the SDIO/SPI<br />

� PLL configuration<br />

� Firmware download<br />

� Releasing the core from reset<br />

� Firmware initialization<br />

Copyright © JORJIN TECHNOLOGIES INC. LIMITED 2009<br />

CONFIDENTIAL<br />

- 9-

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