VSC8504-02 datasheet(53/131 Pages) MICROSEMI

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VSC8504-02 数据表(PDF) 53 Page - Microsemi Corporation

部件名	VSC8504-02

功能描述	Quad-Port 10/100/1000BASE-T PHY with Synchronous Ethernet and QSGMII/SGMII MAC

PDF	131 Pages

Scroll/Zoom	100%

制造商	MICROSEMI [Microsemi Corporation]

网页	http://www.microsemi.com

标志

53 / 131 page

Functional Descriptions

VMDS-10507 VSC8504-02 Datasheet Revision 4.2

010: 1000BASE-X

011: 100BASE-FX

Write new register 23.

12. Software reset. Read register 0 (to access register 0, register 31 must be 0). Set bit 15 to 1.

Write new register 0.

13. Read register 0 until bit 15 equals 0.

14. Release the COMA_MODE pin, drive low (only necessary if COMA_MODE pin is driven high or

unconnected).

3.19.1

Initialization

The COMA_MODE pin provides an optional feature that may be used to control when the PHYs become

active. The typical usage is to keep the PHYs from becoming active before they have been fully

initialized. For more information, see Configuration, page 41. By not being active until after complete

initialization keeps links from going up and down. Alternatively the COMA_MODE pin may be connected

low (ground) and the PHYs will be fully active once out of reset.

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